Su-Chi

When this creature dies, add {C}{C}{C}{C}.

Serendib Efreet

Flying
At the beginning of your upkeep, this creature deals 1 damage to you.

Triskelion

This creature enters with three +1/+1 counters on it.
Remove a +1/+1 counter from this creature: It deals 1 damage to any target.

Erhnam Djinn

At the beginning of your upkeep, target non-Wall creature an opponent controls gains forestwalk until your next upkeep. (It can't be blocked as long as defending player controls a Forest.)

Hypnotic Specter

Flying
Whenever this creature deals damage to an opponent, that player discards a card at random.

Savannah Lions

Mishra's Factory

{T}: Add {C}.
{1}: This land becomes a 2/2 Assembly-Worker artifact creature until end of turn. It's still a land.
{T}: Target Assembly-Worker creature gets +1/+1 until end of turn.

Atog

Sacrifice an artifact: This creature gets +2/+2 until end of turn.

Shivan Dragon

Flying
{R}: This creature gets +1/+0 until end of turn.

Serra Angel

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

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.