Braum, heart of the Freljord

The first time Braum takes damage create a
3/3 token creature with trample called
"Mighty poro"

Whenever Braum takes damage put a "Stand behind Braum" counter on him equal to damage dealt
Whenever Braum has 10 or more "Stand behind Braum" counters on him exile him, then return him to the battlefield transformed under his owner's control