Kieran, Rovin' Gambler

Haste, trample, lifelink

Kieran attacks each combat if able, and attacks a randomly chosen target. Whenever Kieran attacks, roll a d6 and flip a coin. If the coin result is heads, they gain +X/+X where X is the die's result. If the coin is tails, Kieran deals damage equal to the die's result to its controller.

At the beginning of each player's upkeep, that player gains control of Kieran, untaps it, and puts a +1/+1 counter on it. Whenever Kieran untaps under its owner's control, they draw a card a