Sheoldred's Headcleaver

Menace
Toxic 2 (Players dealt combat damage by this creature also get two poison counters.)

Furnace Strider

This creature enters with two oil counters on it.
Remove an oil counter from this creature: Target creature you control gains haste until end of turn.

Swamp

Bonepicker Skirge

Flying
Corrupted — As long as an opponent has three or more poison counters, this creature has deathtouch and lifelink.

Archfiend of the Dross

Flying
This creature enters with four oil counters on it.
At the beginning of your upkeep, remove an oil counter from this creature. Then if it has no oil counters on it, you lose the game.
Whenever a creature an opponent controls dies, its controller loses 2 life.

Chimney Rabble

Haste
When this creature enters, create a 1/1 red Phyrexian Goblin creature token.

Necrosquito

Flying
This creature enters with two oil counters on it.
This creature gets +1/+1 for each oil counter on it.
Whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on this creature.

Charforger

When this creature enters, create a 1/1 red Phyrexian Goblin creature token.
Whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on this creature.
Remove three oil counters from this creature: Exile the top card of your library. You may play that card this turn.

Hexgold Slash

Hexgold Slash deals 2 damage to target creature. If that creature has toxic, Hexgold Slash deals 4 damage to that creature instead.

Axiom Engraver

This creature enters with two oil counters on it.
{T}, Remove an oil counter from this creature, Discard a card: Draw a card.

Blightbelly Rat

Toxic 1 (Players dealt combat damage by this creature also get a poison counter.)
When this creature dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Barbed Batterfist

For Mirrodin! (When this Equipment enters, create a 2/2 red Rebel creature token, then attach this to it.)
Equipped creature gets +1/-1.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Mountain

Argentum Masticore

First strike, protection from multicolored
At the beginning of your upkeep, sacrifice this creature unless you discard a card. When you discard a card this way, destroy target nonland permanent an opponent controls with mana value less than or equal to the mana value of the discarded card.

The Monumental Facade

This land enters with two oil counters on it.
{T}: Add {C}.
{T}, Remove an oil counter from this land: Put an oil counter on target artifact or creature you control. Activate only as a sorcery.

Blackcleave Cliffs

This land enters tapped unless you control two or fewer other lands.
{T}: Add {B} or {R}.

Volt Charge

Volt Charge deals 3 damage to any target. Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

Oxidda Finisher

Affinity for Equipment (This spell costs {1} less to cast for each Equipment you control.)
Trample

Anoint with Affliction

Exile target creature if it has mana value 3 or less.
Corrupted — Exile that creature instead if its controller has three or more poison counters.

Hazardous Blast

Hazardous Blast deals 1 damage to each creature your opponents control. Creatures your opponents control can't block this turn.

Shrapnel Slinger

When this creature enters, you may sacrifice a creature. When you do, destroy target artifact an opponent controls.