Flayer Drone

Devoid (This card has no color.)
First strike
Whenever another colorless creature you control enters, target opponent loses 1 life.

Bloodfell Caves

This land enters tapped.
When this land enters, you gain 1 life.
{T}: Add {B} or {R}.

Ulamog, the Ceaseless Hunger

When you cast this spell, exile two target permanents.
Indestructible
Whenever Ulamog, the Ceaseless Hunger attacks, defending player exiles the top twenty cards of their library.

Evolving Wilds

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Oblivion Strike

Devoid (This card has no color.)
Exile target creature.

Blighted Woodland

{T}: Add {C}.
{3}{G}, {T}, Sacrifice Blighted Woodland: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Dominator Drone

Devoid (This card has no color.)
Ingest (Whenever this creature deals combat damage to a player, that player exiles the top card of their library.)
When Dominator Drone enters, if you control another colorless creature, each opponent loses 2 life.

Consuming Sinkhole

Devoid (This card has no color.)
Choose one —
• Exile target land creature.
• Consuming Sinkhole deals 4 damage to target player or planeswalker.

Silent Skimmer

Devoid (This card has no color.)
Flying
Whenever Silent Skimmer attacks, defending player loses 2 life.

Molten Nursery

Devoid (This card has no color.)
Whenever you cast a colorless spell, Molten Nursery deals 1 damage to any target.

Mountain

Essence Depleter

Devoid (This card has no color.)
{1}{C}: Target opponent loses 1 life and you gain 1 life. ({C} represents colorless mana.)

Forerunner of Slaughter

Devoid (This card has no color.)
{1}: Target colorless creature gains haste until end of turn.

Swamp

Touch of the Void

Devoid (This card has no color.)
Touch of the Void deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Nettle Drone

Devoid (This card has no color.)
{T}: Nettle Drone deals 1 damage to each opponent.
Whenever you cast a colorless spell, untap Nettle Drone.

Grave Birthing

Devoid (This card has no color.)
Target opponent exiles a card from their graveyard. You create a 1/1 colorless Eldrazi Scion creature token. It has "Sacrifice this creature: Add {C}."
Draw a card.