Flying, deathtouch
Megamorph (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)
When Acid-Spewer Dragon is turned face up, put a +1/+1 counter on each other Dragon creature you control.

Flying
First strike (This creature deals combat damage before creatures without first strike.)

When Banisher Priest enters the battlefield, exile target creature an opponent controls until Banisher Priest leaves the battlefield. (That creature returns under its owner's control.)

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 the battlefield, if you control another colorless creature, each opponent loses 2 life.

Devoid (This card has no color.)
When Drowner of Hope enters the battlefield, create two 1/1 colorless Eldrazi Scion creature tokens. They have "Sacrifice this creature: Add ."
Sacrifice an Eldrazi Scion: Tap target creature.

When Elite Arcanist enters the battlefield, you may exile an instant card from your hand.
, : Copy the exiled card. You may cast the copy without paying its mana cost. X is the converted mana cost of the exiled card.

When Enlightened Ascetic enters the battlefield, you may destroy target enchantment.

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

Sliver creatures you control have flying.

Enchant creature
Enchanted creature has deathtouch and indestructible.
Morph—Sacrifice another creature. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)
As Gift of Doom is turned face up, you may attach it to a creature.

Flying

: Target creature can't block Kozilek's Pathfinder this turn. ( represents colorless mana.)

Heroic — Whenever you cast a spell that targets Lagonna-Band Trailblazer, put a +1/+1 counter on Lagonna-Band Trailblazer.

Reach
When Sandsteppe Mastodon enters the battlefield, bolster 5. (Choose a creature with the least toughness among creatures you control and put five +1/+1 counters on it.)

: Add . Activate this ability only if you control five or more lands.

When Undead Servant enters the battlefield, create a 2/2 black Zombie creature token for each card named Undead Servant in your graveyard.