Styr, Magnar of Thenn

At the beginning of your end step, if you attacked with creature this turn, you may pay {2}{g/w} and put a +1/+1 counter on Styr, Magnar of Thenn.
"Those your parents? Open your eyes. I'm going to eat them. Do you hear me? I'm going to eat your dead Mama, and I'm going to eat your dead Papa."