Once you reach the main capital city in your playthrough, take the oxcart at the western gate to the Border Checkpoint. You will immediately be approached by a furry looking for the Jadeite Orb. You can buy it from the scrap shop for 7500 in town and then give it to him (or give him a forgery) for...

It's lighter than the Explorer's set and I've never had it break. I played through the rest of the game with this just fine.

Are you wasting my money again son?
In all seriousness, I think this was put here to get whales to burn money. There is no in-game reason I can justify for purchasing this DLC or using this item in game. Harpies are like one of the three most common enemy types and I've never once felt I needed to use one as a glider to get around the world. Find em in a chest in caves or in certain shops, and then forget you have them and never use them once.

This DLC is one of the few that I believe is entirely unobtainable in-game. Just like this DLC, no one finds this item useful enough in the slightest to sell in this loveless game world.
Here's what you do instead. Pick some flowers, combine them into pretty flowers, and accomplish the exact same effect as this garbage item. You'll waste your money less throwing it at puts on Boeing stock right now.

This item will change your main pawn's inclination to one of the other ones at random. If you were going to want to change to a different inclination, you probably have a specific one in mind. That renders the concept of this item completely worthless.

Can be purchased for 500 Rift Crystals at the pawn guild in Vernworth. Spend your Rift Crystals on literally anything else please. Thank you. You could probably find it in the wild somewhere, but why would you want to?

"Have I ever told you the definition of insanity?"

This item is a trap, both paid and earned. Literally one of the first major story missions, you are given an infinite-use version of this item. Simply visit the Scrap shop at the western border checkpoint, pay 5000 for a forgery, and never worry about the false potential this item promises. Why would you buy this for real money when you have the Skeleton Key in your back pocket for the rest of the game?

It lets you edit your character. Buy it for 500 Rift Crystals at the Pawn guild in Vernworth. They only sell two per playthrough... unless you go to the merchant at NexusMods (google it) and install Fluffy's mod manager and just mod in 99 more tomes costing 10 gold each. You also get a free character edit in New Game+ as well.

This is the only one of the DLCs that has absolutely any utility whatsoever. Place this bad boy down and you'll have a permanent fast travel spot back using Ferrystones (the item you would have expected to be DLC for its greater utility).
You get one for doing the main quest, doing a certain interaction with a Griffin in the Vernworth area, doing some riddles with a certain NPC, and from the Dragonforged merchant for Wyrmslife Crystals (whatever they're called). I think I may be missing one or two, but there are only so many places where it makes sense to put these down.
Due to the limited nature of Ferrystones in the early game, you will get maybe one or two uses out of this before you find/earn enough Portcrystals/Ferrystones to fast travel everywhere you find important. Oxcarts also exist mind you.

You can buy a total of 5 extra lives through this DLC.
Doing the main quest early on unlocks an item that lets you automatically mark shards on your map. (3 shards make one stone)
You can also just hire some other low level pawns that haven't been used yet and do the pawn quest for traveling with them for a day. Go wait on a bench for a day and then bank 2 shards. Rinse and repeat for 30 minutes and have all the wakestones you'll ever need.
You can also purchase shards from shops, but the price is not worth it at all.

Another important thing to note is that the combat system of attack and defense calculation in Dragon's Dogma is based on what appears to be flat number reductions and not percentages. This means that a lot of fights will be either pretty easy or C&B Torture difficult based on your gear. If you try fighting a chimera in basic equipment and die. You'll probably just get killed the moment you get up again. Five extra lives will not help you here.

Please don't buy this.

The DMC5 red orb situation again.
Rift Crystals are mainly used for buying mostly cosmetic items like Inclination Incense, Art of Metamorphosis, some facial cosmetics (glasses), dyes, and summoning pawns above your level.

You can earn RC from doing many different things.

• Opening chests
  
• Main quests
  
• Side quests
  
• Repairing minor Riftstones
  
• Players summoning your Pawn
  
• Certain enemies at night
  
• Certain enemies in the "postgame"
  
• Etc

If you somehow don't gather enough from general play for your liking.
Your good friend Fluffy over at Nexus is happy to help you "find" more.

Hope this guide helped people who were concerned as to what they were missing out on. This excessive display of greed from Capcom might be expected, but its always impressive to see them "innovate" on senses of pride and accomplishment.
Do not buy these DLCs
Have a great day.