Scars of Mirrodin

Target creature gets +1/+0 and gains infect until end of turn. (It deals damage to creatures in the form of -1/-1 counters and to players in the fo...

As long as Necrotic Ooze is on the battlefield, it has all activated abilities of all creature cards in all graveyards.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.) When Blistergrub dies, each opponent loses 2 life.

Metalcraft — When Bleak Coven Vampires enters the battlefield, if you control three or more artifacts, target player loses 4 life and you gain 4 life.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Ichor Rats enter...

{B}, Sacrifice a creature: Regenerate Corrupted Harvester.

When Skinrender enters the battlefield, put three -1/-1 counters on target creature.

Enchant artifact Whenever enchanted artifact becomes tapped, its controller gets a poison counter.

Target player discards a card. If a land card is discarded this way, return Psychic Miasma to its owner's hand.

Whenever you cast an artifact spell, you may have target creature get +2/+0 and gain deathtouch until end of turn.

Flying When Necrogen Scudder enters the battlefield, you lose 3 life.

Choose a nonland card name. Search target player's graveyard, hand, and library for any number of cards with that name and exile them. Then that pl...

Put a -1/-1 counter on target creature. Draw a card.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) When Ichor Rats enter...

Target creature gets -4/-4 until end of turn.

Sacrifice Fume Spitter: Put a -1/-1 counter on target creature.

As an additional cost to cast this spell, sacrifice a creature. Destroy target creature. Its controller loses life equal to the number of creatures...

Sacrifice a creature: Dross Hopper gains flying until end of turn.

{B}, Sacrifice a creature: Regenerate Corrupted Harvester.

Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Haste Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)

Target player discards a card. If a land card is discarded this way, return Psychic Miasma to its owner's hand.

Flying Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)