CJ, Spellbook Master

Flying, Adaptive Magic
Mystical Partnership - This commander can partner with ANY legendary creature.

When a commander you control becomes the target of a spell an opponent controls, your commanders cost {2} less to cast from the command zone until the end of your next turn.
When CJ, Spellbook Master deals combat damage to a player, scry 2 and draw a card.

"I would like to present a loop" - CJ