Churning Reservoir

At the beginning of your upkeep, put an oil counter on another target nontoken artifact or creature you control.
{2}, {T}: Create a 1/1 red Phyrexian Goblin creature token. Activate only if an oil counter was removed from a permanent you controlled this turn or a permanent with an oil counter on it was put into a graveyard this turn.

Mountain

The Autonomous Furnace

This land enters tapped.
{T}: Add {R}.
{1}{R}, {T}, Sacrifice this land: Draw a card.

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.

Evolving Adaptive

This creature enters with an oil counter on it.
This creature gets +1/+1 for each oil counter on it.
Whenever another creature you control enters, if that creature has greater power or toughness than this creature, put an oil counter on this creature.

Atraxa's Skitterfang

This creature enters with three oil counters on it.
At the beginning of combat on your turn, you may remove an oil counter from this creature. When you do, target creature you control gains your choice of flying, vigilance, deathtouch, or lifelink until end of turn.

Forgehammer Centurion

Whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on this creature.
Whenever this creature attacks, you may remove two oil counters from it. When you do, target creature can't block this turn.

Cinderslash Ravager

This spell costs {1} less to cast for each permanent you control with oil counters on it.
Vigilance
When this creature enters, it deals 1 damage to each creature your opponents control.

Armored Scrapgorger

This creature gets +3/+0 as long as it has three or more oil counters on it.
{T}: Add one mana of any color.
Whenever this creature becomes tapped, exile target card from a graveyard and put an oil counter on this creature.

Lattice-Blade Mantis

This creature enters with two oil counters on it.
Whenever this creature attacks, you may remove an oil counter from it. If you do, untap it and it gets +1/+1 until end of turn.

The Filigree Sylex

{T}: Put an oil counter on The Filigree Sylex.
{T}, Sacrifice The Filigree Sylex: Destroy each nonland permanent with mana value equal to the number of oil counters on The Filigree Sylex.
{T}, Remove ten oil counters from among permanents you control and sacrifice The Filigree Sylex: It deals 10 damage to any target.

Ruthless Predation

Target creature you control gets +1/+2 until end of turn. It fights target creature you don't control. (Each deals damage equal to its power to the other.)

Free from Flesh

Target creature gets +2/+2 until end of turn. Put two oil counters on it.

Copperline Gorge

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

Predation Steward

This creature enters with two oil counters on it.
{2}{G}, {T}, Remove an oil counter from this creature: Target creature gets +2/+2 until end of turn. Activate only as a sorcery.

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.

Forest

Urabrask's Anointer

When this creature enters, it deals X damage to any target, where X is the number of permanents you control with oil counters on them.

Exuberant Fuseling

Trample
This creature gets +1/+0 for each oil counter on it.
When this creature enters and whenever another creature or artifact you control is put into a graveyard from the battlefield, put an oil counter on this creature.

Furnace Skullbomb

{1}, Sacrifice this artifact: Draw a card.
{1}{R}, Sacrifice this artifact: Put two oil counters on target artifact or creature you control. Draw a card. Activate only as a sorcery.

Rustvine Cultivator

{T}: Put an oil counter on this creature.
{T}, Remove an oil counter from this creature: Untap target land.