+gang (20)
Haste
Wither (This deals damage to creatures in the form of -1/-1 counters.)
: Exile target creature card from a graveyard. Dimir Doppelganger becomes a copy of that card, except it has this ability.
For each of X target permanents, create X tokens that are copies of that permanent.
When Gang of Devils dies, it deals 3 damage divided as you choose among one, two, or three targets.
Whenever Gang of Elk becomes blocked, it gets +2/+2 until end of turn for each creature blocking it.
Assist (Another player can pay up to of this spell's cost. You choose the value of X.)
Destroy target creature with power X or less.
Tap three untapped Clerics you control: Return Gangrenous Goliath from your graveyard to your hand.
, Sacrifice Gangrenous Zombies: Gangrenous Zombies deals 1 damage to each creature and each player. If you control a snow Swamp, Gangrenous Zombies deals 2 damage to each creature and each player instead.
When Goblin Gang Leader enters the battlefield, create two 1/1 red Goblin creature tokens.
Reach
Whenever you roll a die, if the result isn't stored on Goblin Girder Gang, you may store that result on it. When you do, Goblin Girder Gang deals 1 damage to any target without a hat.
Goblin Girder Gang gets +1/+0 for each result stored on it.
Attacking creatures you control get +1/+0.
At the beginning of each upkeep, if no spells were cast last turn, transform Instigator Gang.
Flash
You may have Mocking Doppelganger enter the battlefield as a copy of a creature an opponent controls, except it has "Other creatures with the same name as this creature are goaded." (They attack each combat if able and attack a player other than you if able.)
Ninjutsu (, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Okiba-Gang Shinobi deals combat damage to a player, that player discards two cards.
Squad (As an additional cost to cast this spell, you may pay any number of times. When this creature enters the battlefield, create that many tokens that are copies of it.)
When Powder Ganger enters the battlefield, destroy up to one target artifact.
Whenever another creature enters the battlefield under your control, you may have Renegade Doppelganger become a copy of that creature until end of turn. (If it does, it loses this ability for the rest of the turn.)
, Sacrifice a creature: Each other player sacrifices a creature.
, Sacrifice an artifact: Each other player sacrifices an artifact.
, Sacrifice an enchantment: Each other player sacrifices an enchantment.
, Exile Shifty Doppelganger: You may put a creature card from your hand onto the battlefield. If you do, that creature gains haste until end of turn. At the beginning of the next end step, sacrifice that creature. If you do, return Shifty Doppelganger to the battlefield.
When Siege-Gang Commander enters the battlefield, create three 1/1 red Goblin creature tokens.
, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.
When Sling-Gang Lieutenant enters the battlefield, create two 1/1 red Goblin creature tokens.
Sacrifice a Goblin: Target player loses 1 life and you gain 1 life.
You may have Vesuvan Doppelganger enter the battlefield as a copy of any creature on the battlefield, except it doesn't copy that creature's color and it has "At the beginning of your upkeep, you may have this creature become a copy of target creature, except it doesn't copy that creature's color and it has this ability."
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