Transition — term used to describe specific behavor of bosses. It's next for bosses:
- Dragonfly — traveling from pool to pool, spawning lavaes;
- Toadstool — growing choppable mushrooms;
- Bee queen — screaming.
End of the transition — moment after which fight behaves like it did at the start.
Disabling — stunning(e.g. dfly gets stunned once recieves enough damage over 5 secs. google it if you don't get it), freezing, putting asleep, forcing hit recovery, etc...
Cooldown — basically time before ability(e.g. ability to attack) becomes available again.
Despawning — despawning the boss by going out of boss area, ending the fight. Boss will respawn in a few seconds.
Strat — same as strategy.
Freeze threshhold — amount of hits required to freeze unit. Also affects the freeze duration. Bosses increase it after each time of being frozen.

Basics

1. All value intervals posted there depend on current situation and, speaking of hits you can deal, on your current speed modifier (1x is default, walking cane adds 0.25, yellow amulet adds 0.2, road adds 0.3, Wolfgangs mighty form adds 0.25; those modifiers stack additively)
   
   
2. Every time you disable mob, his timers are delayed. E.g. pig attacks every 3 seconds, but you can deal 5-6 hits before dodging the next one, since you will force hit recovery it with each attack.
   
   
3. Wearing both head and body armor protects you for the highest percent of those two(60 and 80% protection will protect for 80%). Wearing both of them just splits the damage somehow. Whatever. Use that knowlege for your own advantage.
   
   
4. Freezing timer is applied twice. By default its 10 seconds before ice starts shaking and then the same amount of time before it shatters. You can keep target frozen by applying freezing to it while ice is not shaking. If its already shaking - reapplying freeze will break the ice.
   
   
5. Dragonfly and toadcan be wet. Not quite sure if wet damage scales with wetness, but yeeeaaah, thats here.

DRAGONFLY

1. Dragonfly deals 75 damage per hit to player(double damage on all attacks to mobs) normally and 150 while enraged, not to manage that during enrage she will be burning you for extra damage(she's kinda hot as lava). Her "ass jumping" also known as slam attack deals up to 225 damage and is being cast only during enrage state (instead of attack). That slam has pretty big cooldown time and pretty low AoE range, allowing you to ignore it. Her attack cooldown is 6 (normal) and 4 (enraged). Slam does not affect attack cooldown since it uses its own. All boss fighting focuses at avoiding fighting her enrage state at all costs.
   
   
2. Total amount of lavae spawned per dragonfly transition = (current transition №) + 4 (resulting in 5/6/7/... lavaes spawned. Normally you have only 3 transitions.)
   
   
3. Lavae will attempt to set you ablaze by approaching too close if you get too far from them after they do their attack, followed by taunt animation.
   
   
4. You can deal 6-7 hits to lavae before dodging.
   
   
5. Apparently Wolfgang can get stun&scale from her first phase by using dank sword. Because of this knowlege being given to me, this guide gets finished. Don't expect me to support it though, lol.
   
   
6. Dragonfly is kitable. If she starts her attack while standing still — she ain't moving during it, allowing you to get out of range. Attack period is 6(seconds) and she gets hit recovery animation 1-2 times for about 0.25 seconds, seemingly. Character with 1x speed modifier deals 6-7 hits(7 hits seem to be about frame perfect), then dodges. Wolfgang can do 6-6.5 hits and dodge (any extra speed modifiers allow you to have more courage). Doing 7 hits is also a possibility, but you have to get super used to that. Or have alot of speed. You can also dodge her on_move_attacks, if you use wolfgang with walking cane, while moving on road. Have to get used to that. I think having 1.25-1.3 modifier and doing 6-6.5 hits every time is the best in terms of dodge consistency. Enrage is kitable too, but you are too bad for that :>
   
   
7. First hit on dragonfly is better dealt after despawning. If you are fast enough — you can deal that hit before she starts chasing&attacking you, getting hit recovery on her, allowing you to dodge first attack sort of reliably(its reliable to dodge it after hit recovery animation, you just have to get it). Dfly despawns once she is too far from point which she did aggro at you at, not the spawn point. Which means you wanna aggro her on, lets say, left side, then run towards the opposite(right) side, until she despawns. After about 10 seconds she will respawn at the middle of the boss area(usually right next to magma pool; it's sort of easy to tell where is the spawn point). Once she respawns, she is sort of paused for a little while, so you have time to react.
   
   
8. Dragonfly moves with ~1.25 player speed normally, allowing you to get away from her. On lavae spawn she speeds up though, punishing hard any fleeing until all lavaes are dead.
   
   
9. Transitions are health based and, perhaps, connected hits based(if you are tanking dragonfly, then you are bad at this game) However tanking method is (or will be) described in this guide. Its viable for 2+ players rush.
   
   
10. Disables like freezing, stun and sleep put dfly out of enrage. She also cannot enter it while frozen/sleeping. Unless the ice is trembling(shacking)...

TOADSTOOL

1. Toads wetness follows global variable with current world wetness. It seems to decrease very slowly (if at all) during the winter and spring, while it evaporates during summer and autumn. So if you wanna use morning star, keep that in mind. Wet ground(its kinda darker in some places and it does this squishy sound when you move on it) signs about global wetness being in between 50-100 (I think.) So if you are questioning if it did rain already — watch the turf.
   
   
2. Killing toad with ham bats is not very appropriate for solo strat, but hey :>

This one ain't all that tricky, and you may find it very consistent after doing some practice.
It is usefull for rushing as long as you can get yourself pans flute quickly.

1. Position yourself close to one of the magma pools near the edge(actually try to deal some damage to dfly as a backup, while she is flying from pool to pool). Don't forget to kite lavaes.
   
2. When amount of spawned lavaes reaches (total amount for current transition)-3 lavaes, get ready to run away from dfly.
   
3. You don't really need to make sure that necessary amount of lavaes is spawned by getting peek on them. You can rely on your knowlege about where is she at the moment, sounds and average time required to spawn a lavae(not hard to predict really).
   
4. Once you'd think that she spawned the required amount, wait a little more if she is not visible to you(far away), Otherwise - start running. If you see her flying away from you - wait a little too. The point of this step is to make her spawn as many lavaes as possible before we 'pause' her during transition. If you screw up for whatever reason, put her asleep with pans flute once she starts moving towards you after the end of transition.
   
5. Once you will be certain distance away from dragonfly, lavaes that are following you will stop. That means that we are far enough from dfly to make her be sort of unloaded if noone else (of players) is around her. I reccomend getting a little closer towards dragonfly at this point just because its how I was testing stuff. Lavaes should start moving for little distances bit by bit, every time followed by long pauses. If they get too close to you - they will attack, so make fun of them as you want. We are waiting for expiration of their life timer now.
   
6. Lavaes will eventually start dying. Once the amount of lavaes on your screen reaches 1 or 2, start moving back to dragonfly. If you did put her asleep because of screwing up, you might wanna start running towards her on 2-2.5 lavaes left.
   
7. What happens now is we are reaching range at which lavaes start moving normally again, dragonfly resumes and boss battle continues. If you didn't put her asleep before - she will keep spawning up to 2 lavaes, then will get attack order on you. Put her asleep at this point. Make sure to start damaging newly spawned lavaes whenever you can. If you left her sleeping because of screwing up - she wont be approaching you, but I susspect that she slowly regenerates while she has no target (thats why I reccomended you damaging her at the first step, transition may start again because of her getting to the same health threshhold). Put her asleep once lavaes die(to get her out of enrage). The reason for starting transition anew might be different, I didn't do proper testing since I prefer to leave her early, not risking much. This way worst case scenario is - she spawns more then 2 lavaes when I come back and I have to spend total of 1-2 flute charges, while Im killing the lavaes. So in this case you leave 1-2 flute charges, instead of 2.
   
8. Well, end the transition by putting her asleep if she is enraged. Otherwise either take hit or hit her twice and dodge, if she is still sleeping. That concludes the transition. The fight starts anew.

Well, explanations on this one are barely needed. Frog rain has 16% chance of happening(I believe during spring only...) However I can tell you about some tricks...

• Dfly targeting prioritises players over mobs. You can greatly assist frogs and yourself by working together(easy stuns, easy scales). It just makes it even easier then fighting her with a friend.
  
• Frogs are very likely to loose their dfly target during transition phase... But if you position yourself right, they will aggro at her once she flies above them, getting all of her attention too. That would allow you to deal with lavaes on their own or just wait them out...
  
• Did I mention before that lavaes will only start getting too close to you once you get too far from them as they finish their attack? They will stand still otherwise. That allows to fight 3 async lavaes at once and any amount if you synchronize them(just like cave worms). Though synchronizing them needs to be done before they start attacking you since they are kinda outrunning the player :)

Oh boy, if you decided to go for this one — you'll need some extra healing.
Main point of that strategy is to get dragonfly to 100 wetness to put her out of enrage(yes, it does that). Dragonfly and player are the only entities(I think) that gain wetness from waterballoons. Others probably use some global wetness parameter.
On enrage dragonfly looses all of her wetness, so you have to start throwing waterballoons after she hits enrage. Her first attack will be the slam, which gives you convenient time to strike her 5 times with waterballoon(20 wetness each).
You may wanna go for this strat if you are lucky to find swamp quickly. But since you will have to tank plenty of hits anyway(at least 2 after each transition), you also need to find blue mushrooms or something.
Mosquitos drop their sacks at 50% drop rate. Using those on water pools allow you to get 1 waterballoon each. You can also craft 4 waterballoons using 1 ice and 2 mosquito sacks (tier 1 technology, requires science machine to prototype; survival tab).
This strat is best combined with brute force(I didn't describe it, but its like tanking with tryhard dodges involved) or pans flute strat.

This one is likely to take more time then the others, but its the strat with best rewards.
Basically, each snowball of ice flingomatic affects non-players as if they were hit twice with ice stave. Dragonfly has 8[+1] freeze threshhold. Her freeze time is 10[-1] (+ ice will tremble for the same time). But dfly on her own is just a punching bag. Her lavaes are what makes it difficult. Lavaes get frozen with like 3 ice stave hits(2 snowballs. Thats why we have 2 flingos. Its not guaranteed that when you lit one hay wall, that others will start smoldering before it gets extinguished(because of tickrate on fire spread event))
One will need ~36 hay walls (actually even 8-12 can be used effectively, but I don't think one can get 2 flingos on day 1 so why not to get a nice 6x6 area of hay walls?). Once you build this 6x6 arena (anywhere as a Wolfgang, others better build it on the road(or anywhere if they have like 0 ping)), smash walls down with your weapon. Make sure 2 flingos can reach those.
And so you fight dfly at her respawn point(you do remember why, right?), kiting her attacks and think of those beautiful gems she'll drop on death, but then the transition comes... Here's your plan:

1. Get to your 6x6 arena. Make sure flingos are turned on (I prefer to enable them at this step, but sometimes she spawns lavaes too close... I learned to ignore that factor, but newbies will have to get used to it).
   
2. Start litting up your hay once lavaes are about half-screen width from you. Just get them under those snowballs that are coming. Frozen lavaes will drop like 3 stones on death, if they died while frozen (leading to about 60 stones by the end of the boss fight), as well as 3 fires(carefull there, those act like napalm. Avoid walking over them.) which will get snowballs throwed at.
   
3. Remember those 3 fires lavaes spawn on death? Well, you need to use those to get dfly frozen once she spawns all of her lavaes(5/6/7). Once she is frozen, deal with the rest of the lavaes.

I BEG YOU TO COUNT LAVAES EVEN IF YOU ARE VERY CONFIDENT IN YOUR FIGHTING SKILLS.

That basically concludes this strategy. Once dfly is dead, get all this sweet stone :>

You can use this strat for solo kill, but Im not describing that case since its not worth going for. For 2+ players that allows to have a comfortable and still pretty early kill.
Go ruins/make earthquakes by blowing up slurtles(spawn them by hitting their mounds with lamp(since it deals just 10 damage)). Any snurtles found should be killed instead (75% to get badass 1050*0.7 durability armor with 60%(100% when used with RMB) damage absorbtion)

You need about 3-3.25x attack. Press LMB on dfly with your friend. Enjoy the beating of this green punching bag.
During transition you may split lavaes between you and your friends. Those aggro on the closest target to them at the moment of their spawn. Other methods of killing lavaes were described before. Dfly might enrage for a while though. To avoid that you can leave last lavae alive(just make sure to dodge her attacks with little moves. You move too far - she will start moving too close and you'll burn...) and fight dfly at the same time. Or fight her enraged(since dps is high, she wont last long. But make sure to dodge her butt-stomping attack)
Theres plenty of info I can provide you with, kinda, but I wanna just get over with this guide, sorry. It remains half finished for like 1.5 months now.

That contains my original personal message answer to one guy wondering about it. Short, but informative. I want to add to it just one thing - you can speed the process up by using pans flute when there is 8+ mushrooms. That would effectively delay the transition and, by this, increase the time you can fight him with 0 existing mushroom trees.
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General toadstool strategy for me is to get the morning star, then wait until its wet in caves(usually after rain during winter/sring) and then fight him for 3-3.5 days in a row. I usually chop down first tree that spawns near me, then burn the others. If I can not reach one of the trees because of those spore clouds - I burn the toadstool and make him get close to this tree(devs actually buffed the range at which those trees start smoldering by a lot). So during overall fight I loose like 20% of damage dealt, which is appropriate.

Starting with 2nd transition and further you probably will have time between toads resistance getting down to 40%(7 trees) and you chopping a tree(one or two trees are left from previous transition, possibly even unburning) - thats the perfect time to get food for like 60 food value from your backpack that holds it, as well as get 60 more to fill your pockets(I usually walk to backpack once per 2 transitions. Food spoilage from clouds is real, but it doesn't spoil all that fast...)

It is totally possible to kill him using ham bats too, but it should take 4 or even 5 days if done properly... Didn't bother with it since he is such a situational boss.

That chapter contains text of my original post[forums.kleientertainment.com] on KLEI forums.
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Woo I think I finally came up with a reliable early game strategy for solo Wolfgang. 80 cooked blue caps(since those are super easy to get in caves) + 40 carrots are enough for even a pretty-bad case scenario. Having a few uncooked blue caps to be able to tank a bit is a nice thing too(though you dont have to tank at all). Orange stave to prevent sitting in roots(you can't dodge them forever, right?), purple amulet to kill the channelers(better wear it only to make a hit or bait boss for mind control use). And some rock lobsters are required(during tests I used 9 little ones, but in real circumstances you are far more likely to get big ones, they have bigger body size too! you dont need necessarily 9 of them, but probably the more - the better(though too many wont let you get any hits on boss, which might be a good thing since you wont loose any sanity and the boss will still spend some health overall)).

General strategy - fight and dodge, as usual. During transitions adds have higher priority then channelers. Boss will be surrounded with rock lobsters(they will hide in fear) and they will effectively block incoming adds. It has good point to let some adds come through this barrier(there are likely to be visible gaps in this lobster-wall) so the boss stays in his "waiting for food" animation for longer. Better let him eat the very last add then kill it(rock lobsters and you will totally overdps this 1 hit on add). I also feel like during this feeding state his cooldowns are paused, or its because of the last add being alive or for whatever else reason, but the more time lobsters have to relax - the better. Once a single add remains - start killing the rest of channelers(if you did kill any before the adds did spawn). When you see roots wear off - just time it right and dodge them by going far enough from boss or to the world border. While you are waiting - its a perfect time to eat those sweet blue caps and carrots! So you wont waste any time! DPS from lobsters allows you to let alot more adds come through then when you are fighting him solo.

Rinse and repeat!

The worst thing you have to do to kill this boss - is wait for day 21 to get the heart. Rockies are very easy to get once you find them, which you totally will do since you tentacle_pillar takes time to find...

Tried fighting him with 5 fully grown rockies - I am pretty sure they dont need me to fight the boss, lol. I ate like 20 cooked blue caps and 10 carrots and the fight was over.

Reminding you that I don't have any intentions of supporting this guide. Live on with all mistakes that have their place here.