Ysiros Allyra

Double Strike
When Ysiros Allyra enters the battlefield, create Shadow, a legendary 4/1 green Cat creature
token with Trample.
Whenever a creatures dies, if it had power greater
than Ysiros's power, put a number of +1/+1
counters on Ysiros Allyra equal to the difference.
"No more playing around."
—Ysiros Allyra