Gift a card (You may promise an opponent a gift as you cast this spell. If you do, they draw a card before its other effects.)
Wildfire Howl deals 2 damage to each creature. If the gift was promised, instead Wildfire Howl deals 1 damage to any target and 2 damage to each creature.

Start your engines! (If you have no speed, it starts at 1. It increases once on each of your turns when an opponent loses life. Max speed is 4.)
When this creature dies, create a 1/1 colorless Servo artifact creature token.
Max speed — This creature gets +1/+0.

Cowards can't block Warriors.
: Target creature becomes a Coward until end of turn.
: Target creature becomes a Warrior until end of turn.

This land enters tapped.
When this land enters, you gain 1 life.
: Add or .

, : Another target creature you control gets +2/+0 and gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)

When White Widow enters, choose one —
• Put a +1/+1 counter on each of up to two target creatures.
• Return target artifact or enchantment card from your graveyard to your hand.

Landfall — Whenever a land you control enters, choose one —
• Tap target creature an opponent controls.
• Untap target creature you control.

When this creature enters, you may sacrifice another creature or enchantment. When you do, this creature deals 2 damage to any target.

Target creature gets +3/+0 and gains reach and first strike until end of turn.

Target creature gets +1/+0 until end of turn.
Draw a card.

Sneak (You may cast this spell for if you also return an unblocked attacker you control to hand during the declare blockers step. He enters tapped and attacking.)
Menace (This creature can't be blocked except by two or more creatures.)
Other Ninjas you control get +1/+1.

Flash
When this artifact enters or leaves the battlefield, you may tap or untap target creature.
, Sacrifice this artifact: Draw two cards.

When this enchantment enters and whenever you expend 4, put a stash counter on it. (You expend 4 as you spend your fourth total mana to cast spells during a turn.)
, Sacrifice this enchantment: Discard your hand, then draw cards equal to the number of stash counters on this enchantment.

When this creature enters, choose one —
• Return target creature card from your graveyard to your hand.
• Target opponent reveals their hand. You choose a noncreature card from it. That player discards that card.

Changeling (This card is every creature type.)
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.)
You may have this creature enter as a copy of any creature on the battlefield, except it has changeling.

Flash
Enchant creature you control
When this Aura enters, enchanted creature gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Enchanted creature gets +2/+2.

First strike, haste

This spell costs less to cast if it targets an attacking creature.
Put target creature into its owner's library second from the top.

Whenever another nontoken creature dies, you may create a 1/1 black Rat creature token.
Rats you control have deathtouch.

Whenever a Villain you control enters, each opponent loses 1 life and you gain 1 life. Put a plan counter on this enchantment.
When the fifth plan counter is put on this enchantment, sacrifice it. When you do, target opponent exiles the top five cards of their library. You may cast up to two spells from among the exiled cards without paying their mana costs.