: Add .
, : Create a 2/2 colorless Assembly-Worker artifact creature token.

: Add .
: This land becomes a 2/2 creature with all creature types until end of turn. It's still a land.

( can be paid with either or .)
, Discard a card: Target creature gets -2/-2 until end of turn.
: Create a 2/1 red Goblin creature token with haste. Exile it at the beginning of the next end step.

First strike, protection from white

Each other Warrior creature you control enters with an additional +1/+1 counter on it.
Each creature you control with a +1/+1 counter on it has trample.

You can't cast Serra Avenger during your first, second, or third turns of the game.
Flying, vigilance

Trample, haste
At the beginning of the end step, sacrifice this creature.

Electrolyze deals 2 damage divided as you choose among one or two targets.
Draw a card.

Other Elves you control get +1/+1.
, : Create a 1/1 green Elf Warrior creature token.

Counter target spell, activated ability, or triggered ability. (Mana abilities can't be targeted.)

Each creature assigns combat damage equal to its toughness rather than its power.

Flying
Whenever you draw a card, Niv-Mizzet deals 1 damage to any target.
: Draw a card.