Disintegrate

Disintegrate deals X damage to any target. If it’s a creature, it can’t be regenerated this turn, and if it would die this turn, exile it instead.

Null Rod

Activated abilities of artifacts can’t be activated.

Mishra

If a creature you control would deal damage, it deals double that damage instead.

Volrath

Whenever a creature you control is put into your graveyard from the battlefield, you may put it on top of your library.

Whimsy

Play X random fast effects.

Urza’s Mine

: Add . If you control an Urza’s Power-Plant and an Urza’s Tower, add instead.

Armor of Faith

Enchant creature
Enchanted creature gets +1/+1.
: Enchanted creature gets +0/+1 until end of turn.

Pyrotechnics

Pyrotechnics deals 4 damage divided as you choose among any number of targets.

Vampire Bats

Flying (This creature can’t be blocked except by creatures with flying or reach.)
: Vampire Bats gets +1/+0 until end of turn. Activate this ability no more than twice each turn.

Ironclaw Orcs

Ironclaw Orcs can’t block creatures with power 2 or greater.

Plague Rats

Plague Rats’s power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.

Wall of Bone

Defender (This creature can’t attack.)
: Regenerate Wall of Bone. (The next time this creature would be destroyed this turn, it isn’t. Instead tap it, remove all damage from it, and remove it from combat.)

Blood Lust

If target creature has toughness 5 or greater, it gets +4/-4 until end of turn. Otherwise, it gets +4/-X until end of turn, where X is its toughness minus 1.

Derelor

Black spells you cast cost more to cast.

Fallen Angel

Flying
Sacrifice a creature: Fallen Angel gets +2/+1 until end of turn.

Carapace

Enchant creature
Enchanted creature gets +0/+2.
Sacrifice Carapace: Regenerate enchanted creature.

Living Artifact

Enchant artifact
Whenever you’re dealt damage, put that many vitality counters on Living Artifact.
At the beginning of your upkeep, you may remove a vitality counter from Living Artifact. If you do, you gain 1 life.