Simiri Chaser

Adaptability (Whenever a creature enters the battlefield under an opponent's control, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever Simiri Chaser becomes the target of a spell or ability, you may remove two +1/+1 counters from it. If you do, counter that spell or ability. If you don't, draw a card.