T: Add 1 to your pool. T: Add W or B to your pool. Caves of Koilos deals 1 damage to you.
Counter target spell, activated ability, or triggered ability. (Mana abilities can’t be targeted.)
Flying Carnifex Demon enters with two -1/-1 counters on it. {B}, Remove a -1/-1 counter from Carnifex Demon: Put a -1/-1 counter on each other creature. 6/6
{T}: Add {C}. {W}, {T}, Sacrifice a Cleric creature: You gain life equal to the sacrificed creature’s toughness. {B}, {T}, Sacrifice a Cleric creature: Target player loses life equal to the sacrificed creature’s power.
Wither (This deals damage to creatures in the form of -1/-1 counters.) At the beginning of your upkeep, put a -1/-1 counter on each nonblack creature. 5/5
Suspend 6—{W} Each player chooses a number of lands they control equal to the number of lands controlled by the player who controls the fewest, then sacrifices the rest. Players sacrifice creatures and discard cards the same way.
Flash Creature cards you own that aren’t on the battlefield have flash. Each opponent can cast spells only any time they could cast a sorcery. 3/4
Flying When Reiver Demon enters, if you cast it from your hand, destroy all nonartifact, nonblack creatures. They can’t be regenerated. 6/6
Flash At the beginning of each player’s draw step, that player draws an additional card.
Enchant creature Shroud (A permanent with shroud can’t be the target of spells or abilities.) Enchanted creature has shroud.
Each opponent sacrifices a creature or planeswalker with the highest mana value among creatures and planeswalkers they control.
Trample Whenever one or more creatures you control with trample deal combat damage to a player, create an X/X green Dinosaur Beast creature token with trample, where X is the amount of damage those creatures dealt to that player. 6/6
Flying Whenever Hypnotic Specter deals damage to an opponent, that player discards a card at random. 2/2
Trample Whenever Scion of Darkness deals combat damage to a player, you may put target creature card from that player’s graveyard onto the battlefield under your control. Cycling {3} ({3}, Discard this card: Draw a card.) 6/6