Legacy of the Duelist is “a perfectly balanced game with no exploits.” That being said, this guide will point out a few common exploits for you to take advantage of.

Sadly, you can’t get all the cards without DP. But you can get a lot of DP in a short amount of time and some free cards by Surrendering. LOTD Link Evolution gives a few cards and a consolation prize at every loss/surrender. The DP rewards I’ve found range from 345 to 999 when dueling opponents like Kaiba, Arkana, Mai, Bastion, and so forth. In my experience it works with every duelist in the Campaign/Duel challenges, and the matches can last 30 seconds or less. Set a timer for 15 minutes, keep surrendering, and just watch the money come rolling in. I have no idea why it works, but it just does. I’ve gotten at best 22,890 DP in 15 minutes and cards from packs I didn't have yet with this method. Keep doing it for 30 minutes, and you’ll be set to invest in some major deck builds. Warning: This will only work if you have the time and patience to do it.

-Playing Legacy of the Duelist be like:

A certain Gravekeeper’s guide (that for some reason is no longer available) gave me a serious head start in all the campaigns. The deck has access to a strong fusion monster that is immune to destruction effects, protects your field spell, easily gets over 3000 attack, and pulls a Gravekeepers monster/ spell/trap from your deck at the end of the turn. In match ups against opponents with Special Summon heavy decks, you have access to Hidden temples of Necrovalley, which prevents your opponent from special summoning at all. The best part is that the whole deck can be obtained from the first available pack, Solomon’s pack, and it only costs 200 DP per pack. Here’s the Deck list for those that want it:

3x Gravekeeper’s Spy
3x Gravekeeper’s Recruiter
3x Gravekeeper’s Nobleman
3xGravekeeper’s Spiritualist
3x Gravekeeper’s Commandant
3x Gravekeeper’s Descendant
2x Gravekeeper’s Priestess
2x Gravekeeper’s Guard
1x Gravekeeper’s Shaman
1x Gravekeeper’s Oracle
1x Gravekeeper’s Heretic
For spells
2x Necrovalley
3x Necrovalley Throne
3x Hidden Temples of Necrovalley
1x Pot of Greed
1x Raigeki
For Traps
3x Imperial Tombs of Necrovalley
3x Rite of Spirit
2x Necrovalley Temple
And for our MVP Fusion monster
3x Gravekeeper’s Supernaturalist

Cheat Exodia is also an option for the Campaign since you can use any number of Forbidden/Limited Cards in your deck. And if Exodia crashes your game, check out the "Skip animations/Restore artwork" guide by Sehrael to get rid of all animations and restore the Japanese original artwork

Just be aware that some big chests will appear when battling Mai with it installed.

There are a host of Decks you can build in this game, and I’ve just equipped you with the starting tools to make them. Check out Erfrischungsgetränk’s Guide on the list of all the cards in the game and where to find them.

The decks I personally recommend are Impcantations/Chaos Max, Invoked Mekk-Knights, and Salamangreats. Congratulations, you’ve reached the end of the guide, I’m considering making more. Leave a thumbs up and a favorite if you like it, and let me know if you want more guides.

Have fun guys and gals. And remember: Adapt, Exploit, Overcome.