Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Whenever you cast a noncreature spell, you may pay . If you do, target creature gains double strike until end of turn.

Flash

Flying

Whenever Sigarda's Vanguard enters or attacks, choose any number of creatures with different powers. Those creatures gain double strike until end of turn.

Flying, double strike

More Than Meets the Eye (You may cast this card converted for .)

Double strike, haste

At the beginning of each opponent's upkeep, you may have that player gain control of Slicer until end of turn. If you do, untap Slicer, goad it, and it can't be sacrificed this turn. If you don't, convert it.

Mutate (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)

Double strike

Whenever this creature mutates, it deals 4 damage to target creature or planeswalker an opponent controls and you gain 4 life.

Delve (Each card you exile from your graveyard while casting this spell pays for .)

If a creature card with flying was exiled with Soulflayer's delve ability, Soulflayer has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, reach, trample, and vigilance.

Spelleater Wolverine has double strike as long as there are three or more instant and/or sorcery cards in your graveyard.

Metalcraft — Spiraling Duelist has double strike as long as you control three or more artifacts.

Distribute three +1/+1 counters among any number of target creatures you control.

Level up (: Put a level counter on this. Level up only as a sorcery.)

LEVEL 2-6

3/3

First strike

LEVEL 7+

4/4

Double strike

When Swashbuckler Extraordinaire enters, create a Treasure token. (It's an artifact with ", Sacrifice this artifact: Add one mana of any color.")

Whenever you attack, you may sacrifice one or more Treasures. When you do, up to that many target creatures gain double strike until end of turn.

Double strike (This creature deals both first-strike and regular combat damage.)

Vigilance (Attacking doesn't cause this creature to tap.)

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

Target creature gains double strike until end of turn.

Ferocious — That creature also gains trample until end of turn if you control a creature with power 4 or greater.

Flying

Double strike (This creature deals both first-strike and regular combat damage.)

When this creature enters, creatures you control gain double strike until end of turn.

No more than one creature can attack The Eternal Wanderer each combat.

+1: Exile up to one target artifact or creature. Return that card to the battlefield under its owner's control at the beginning of that player's next end step.

0: Create a 2/2 white Samurai creature token with double strike.

−4: For each player, choose a creature that player controls. Each player sacrifices all creatures they control not chosen this way.

Flash

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for or one mana of that creature's color.)

Double strike

Other tapped creatures you control have hexproof.

Vigilance

Whenever Thunderous Orator attacks, it gains flying until end of turn if you control a creature with flying. The same is true for first strike, double strike, deathtouch, indestructible, lifelink, menace, and trample.

: Target creature gains deathtouch until end of turn.

: Target creature gains vigilance until end of turn.

: Target creature gains double strike until end of turn.

Whenever you attack, target attacking creature gains double strike until end of turn.

(You may cast either half. That door unlocks on the battlefield. As a sorcery, you may pay the mana cost of a locked door to unlock it.)

Target creature gains double strike until end of turn. (Then exile this card. You may cast the creature later from exile.)

Double strike

Disturb (You may cast this card from your graveyard transformed for its disturb cost.)

Whenever you gain life, put a +1/+1 counter on this creature.

As long as you have 25 or more life, this creature has double strike. (It deals both first-strike and regular combat damage.)

Double strike

Double strike (This creature deals both first-strike and regular combat damage.)

Menace (This creature can't be blocked except by two or more creatures.)

Target nontoken creature you control gets +2/+0 and gains double team until end of turn. It also gains first strike until end of turn if it has the same name as another creature you control or a creature card in your graveyard.

When Urdnan, Dromoka Warrior enters, put a +1/+1 counter on target creature.

Whenever you attack, target attacking creature with a +1/+1 counter on it gains first strike until end of turn. If that creature has two or more +1/+1 counters on it, it gains double strike until end of turn instead.

Other Knights you control get +1/+1.

: Knights you control gain double strike until end of turn.

Double strike

: Viashino Slaughtermaster gets +1/+1 until end of turn. Activate only once each turn.

Target creature gets +1/+0 and gains first strike until end of turn.

Delirium — If there are four or more card types among cards in your graveyard, that creature gains double strike until end of turn.

Double strike

Whenever Warren Instigator deals damage to an opponent, you may put a Goblin creature card from your hand onto the battlefield.

Wretched Bonemass's power and toughness are each equal to the total power of the exiled cards used to craft it.

Wretched Bonemass has flying as long as an exiled card used to craft it has flying. The same is true for first strike, double strike, deathtouch, haste, hexproof, indestructible, lifelink, menace, protection, reach, trample, and vigilance.