But her core ability is to let you draw a card for one black or blue mana whenever you sacrifice one of your creatures
Yorion pushed every other midrange deck out of Modern because, if you just trade resources back and forth with Four-Color Yorion, eventually they just cast their free eighth card that happens to be a 4/5 flier that draws like four cards
Where this card really shines is in Commander, where youll be able to steal all creature cards in all three of your opponents graveyards with a single, hugely powerful (and hugely expensive) sorcery spell as well as get back your own creatures that have been killed over the course of the match.
Its a staple in many blue decks, especially Simic or Izzet brews that need creature answers without splashing other colors
As long as you're still in your library, you'll remain a card even if Form of the Approach of the Second Sun leaves the battlefield
Finale of Devastation finds you pretty much whatever you need throughout the game and in the later stages offers a pretty easy kill condition
