Megumin, The Archmage

{r}{r}{r}{r},{t}: Explosion: Megumin deal 13 damage to each opponent creature and planeswalker
Whenever megumin use Explosion ability, she
get +2/+2 until end of turn and put +1/+1
counter on her
Whenever Megumin is targeted by spell or ability, she deals 13 damage to the source controler