Enchant creatureEnchanted creature gets +2/+1 and has protection from white.Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
When Mesmeric Fiend enters, target opponent reveals their hand and you choose a nonland card from it. Exile that card.When Mesmeric Fiend leaves the battlefield, return the exiled card to its owner's hand.
FlyingThreshold — As long as seven or more cards are in your graveyard, Possessed Aven gets +1/+1, is black, and has ", : Destroy target blue creature."
VigilanceThreshold — As long as seven or more cards are in your graveyard, Reborn Hero has "When Reborn Hero dies, you may pay . If you do, return Reborn Hero to the battlefield under your control."
When Faceless Butcher enters, exile another target creature.When Faceless Butcher leaves the battlefield, return the exiled card to the battlefield under its owner's control.
Enchant creatureEnchanted creature has ": This creature gets +1/+1 until end of turn."When enchanted creature dies, return that card to the battlefield under your control.
Whenever Grotesque Hybrid deals combat damage to a creature, destroy that creature. It can't be regenerated.Discard a card: Grotesque Hybrid gains flying and protection from green and from white until end of turn.
Psychotic Haze deals 1 damage to each creature and each player.Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Violent Eruption deals 4 damage divided as you choose among any number of targets.Madness (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)
Choose target instant or sorcery spell that targets only a single permanent or player. Copy that spell for each other permanent or player the spell could target. Each copy targets a different one of those permanents and players.
For each creature token on the battlefield, its controller creates a token that's a copy of that creature.Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
You don't lose the game for having 0 or less life.When you have 20 or more life, you lose the game.Whenever you lose life, you gain 2 life for each 1 life you lost. (Damage dealt to you causes you to lose life.)