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.)
Discard a card: Putrid Imp gains flying until end of turn.Threshold — As long as seven or more cards are in your graveyard, Putrid Imp gets +1/+1 and can't block.
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.
When Llawan, Cephalid Empress enters, return all blue creatures your opponents control to their owners' hands.Your opponents can't cast blue creature spells.
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.)
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.