Sumarna, the indebted

Flying, lifelink,
At the beginning of each players upkeep. Choose one: put a +1/+1 counter on up to 2 creatures that player controls. Or put a colorless debt artifacts token into play. Creatures that have a +1/+1 counter from Sumarna cannot attack you or plainswalkers you control. Whenever a player taps a debt artifacts token Sumarna deals 2 damage to that player