yugioh samurai warlords structure deck list From the Structure Deck TCGplayer - YuGiOh Structure Deck:

Lands are your source of mana, and in Commander, they are more important than ever

Clique (which I somehow had forgotten) is the only really generically excellent one, with serendib winning a distant silver

It just does The Thing for a single generic mana that any deck can pay for, and is thus worth highlighting

Mind Twist will often win the game by wiping out your opponents hand, and Demonic Tutor functionally doubles the frequency you would see the most powerful card(s) in your deck, while also giving you the ability to find exactly what you need, when you need it

They can also fall quickly after bans, reprints, or metagame shifts

With Sylveon ex popping up in a variety of game-changing decks, its a worthwhile themed booster pack to explore