Keyword: Flash

Flash
Flying
You may cast colorless spells and artifact spells as though they had flash.
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza’s Battlethopter’s power, put a +1/+1 counter on Liberator.

Flash
Flying
When Koilos Roc enters, create a tapped Powerstone token. (It’s an artifact with “: Add . This mana can’t be spent to cast a nonartifact spell.”)

Flash
Flying
You may cast colorless spells and artifact spells as though they had flash.
Whenever you cast a spell, if the amount of mana spent to cast that spell is greater than Liberator, Urza’s Battlethopter’s power, put a +1/+1 counter on Liberator.

Flash
When Supply Drop enters, target creature you control gets +2/+2 until end of turn.
, , Sacrifice Supply Drop: Draw a card.

Flash
When Rescue Retriever enters, put a +1/+1 counter on each other Soldier you control.
Prevent all damage that would be dealt to other attacking Soldiers you control.

Flash
Flying
When Zephyr Sentinel enters, return up to one other target creature you control to its owner’s hand. If it was a Soldier, put a +1/+1 counter on Zephyr Sentinel.

Flash
When Wreck Hunter enters, choose target player. You create a tapped Powerstone token for each nonland card in that player’s graveyard that was put there from the battlefield this turn. (It’s an artifact with “: Add . This mana can’t be spent to cast a nonartifact spell.”)

Flash (You may cast this spell any time you could cast an instant.)
Whenever Illusory Ambusher is dealt damage, draw that many cards.

Flash (You may cast this spell any time you could cast an instant.)
Whenever you cast a spell during an opponent’s turn, put a +1/+1 counter on this creature.

Flash
Psychic Abomination — When Sister of Silence enters, counter target instant spell, sorcery spell, activated ability, or triggered ability.

Flash
Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
When Ravener enters, target creature attacks target opponent this turn if able.

Flash
Synaptic Disintegrator — When Necron Deathmark enters, destroy up to one target creature and target player mills three cards.

Flash
Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
When Ravener enters, target creature attacks target opponent this turn if able.

Flash
Vigilance
Aegis of the Emperor — Commanders you control have protection from everything.

Flash
Polymorphine — You may have Callidus Assassin enter tapped as a copy of any creature on the battlefield, except it has “When this creature enters, destroy up to one other target creature with the same name as this creature.”

Flash
Rites of Banishment — When Grey Knight Paragon enters, destroy target attacking creature. If that creature is a Demon, exile it instead.

Flash
Synaptic Disintegrator — When Necron Deathmark enters, destroy up to one target creature and target player mills three cards.

Flash
Haste
Flesh Hooks — Creatures you control that entered this turn have double strike.

Flash
Pheromone Trail — When Lictor enters, if a creature entered the battlefield under an opponent’s control this turn, create a 3/3 green Tyranid Warrior creature token with trample.

Flash
Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)
Benediction of the Omnissiah — When Sicarian Infiltrator enters, draw a card.

Flash
Vigilance
Aegis of the Emperor — Commanders you control have protection from everything.

Flash
Polymorphine — You may have Callidus Assassin enter tapped as a copy of any creature on the battlefield, except it has “When this creature enters, destroy up to one other target creature with the same name as this creature.”

Flash
Rites of Banishment — When Grey Knight Paragon enters, destroy target attacking creature. If that creature is a Demon, exile it instead.

Flash
Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters, create that many tokens that are copies of it.)
Benediction of the Omnissiah — When Sicarian Infiltrator enters, draw a card.