Counter target spell unless its controller pays for each card in your graveyard.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.)
As an additional cost to cast this spell, discard X cards at random.Each player sacrifices X lands of their choice. Devastating Dreams deals X damage to each creature.
First strikeThreshold — As long as seven or more cards are in your graveyard, Possessed Barbarian gets +1/+1, is black, and has ", : Destroy target red 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."
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.
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.
Protection from blackThreshold — Nantuko Blightcutter gets +1/+1 for each black permanent your opponents control as long as seven or more cards are in your graveyard.
TrampleThreshold — As long as seven or more cards are in your graveyard, Possessed Centaur gets +1/+1, is black, and has ", : Destroy target green creature."
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.)
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.)
Destroy all enchantments.Threshold — If seven or more cards are in your graveyard, instead destroy all enchantments, then return all cards in your graveyard destroyed this way to the battlefield.
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.
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.)