Jeong Jeong, the Deserter

Firebending 2 (Whenever this creature attacks, add . This mana lasts until end of combat.)

Whenever you cast a spell while Fire Lord Azula is attacking, copy that spell. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

First strike

Firebending X, where X is the number of experience counters you have. (Whenever this creature attacks, add X . This mana lasts until end of combat.)

Whenever you cast a spell during combat, you get an experience counter.

Firebending X, where X is Fire Lord Zuko's power. (Whenever this creature attacks, add X . This mana lasts until end of combat.)

Whenever you cast a spell from exile and whenever a permanent you control enters from exile, put a +1/+1 counter on each creature you control.

Firebending 1 (Whenever this creature attacks, add . This mana lasts until end of combat.)

Lesson spells you cast cost less to cast.

First strike

When this creature enters, copy the next spell you cast this turn when you cast it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

Haste

Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.)

At the beginning of combat on your turn, each creature you control with a counter on it gains firebending 2 until end of turn. (Whenever it attacks, add . This mana lasts until end of combat.)