Lucius the Eternal Lucius, as you might imagine, is eternal, never truly dying as a champion of Slaanesh
Just to drive home how expensive this could end up being, there's an eBay listing with the current bid at $905
Creature - Human Wizard Color tag templates(None) Angelic Arbiter Flying Each opponent who cast a spell this turn can't attack with creatures
There is also the silver border Krarks Other Thumb, which you could rule zero in, and because its colorless, you can put it in all your decks
Their main strategy is to flood their Graveyard with Skull Servants and Wight monsters to boost King of the Skull Servants' ATK to astronomical levels
Adding some late game threats in the air that provide you with graveyard recursion or boardwide keywords should make it so you have a more resilient board in the mid to late game