Whenever another red creature you control enters, this creature gets +1/+0 until end of turn.

As long as there are two or more instant and/or sorcery cards in your graveyard, this creature gets +1/+0 and has haste. (It can attack and {T} as soon as it comes under your control.)

Haste When this creature dies, create a 1/1 black Rat creature token with "This token can't block."

First strike, haste {2}{R}, Sacrifice this creature: Draw a card and create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Convoke (Your creatures can help cast this spell. Each creature you tap while casting this spell pays for {1} or one mana of that creature's color.)

Creatures you control get +2/+0 until end of turn. Whenever a nontoken creature you control dies this turn, create a 1/1 black Rat creature token with "This token can't block."

Creatures you control get +2/+0 until end of turn. If you control an outlaw, exile the top card of your library. Until the end of your next turn, you may play that card. (Assassins, Mercenaries, Pirates, Rogues, and Warlocks are outlaws.)

Create a 1/1 red Dinosaur creature token with haste and a 1/1 white Human Soldier creature token.

Create two 1/1 red Goblin creature tokens.

Create two 1/1 blue and red Elemental creature tokens.

Create two 1/1 white Human Soldier creature tokens. Humans you control gain haste until end of turn.

({T}: Add {R}.)