The chaos effect is fine, although doesnt feel terribly chaotic, and is easy enough to play around, which feels antithetical to the concept of chaos
The idea here is that you would keep gaining more mana, and if you couldn't pay it, you would keep taking more damage
She totally vanished
Decks interested in cards in the graveyard should also play it because the non-chosen cards go to your graveyard
And at the beginning of each end step, if any creature card was put into your graveyard that turn, he creates a 1/1 Devil token that deals 1 damage to any target when it dies
As a treat, those two cards have made a return in this list, along with some incredibly cool reprints of rarely-seen cards like Bitterthorn, Nissa's Animus and Wave of Reckoning, which was last printed a whole decade ago