Daxfri, Sorcerer Apprentice

First Strike, Vigilance, Menace
Whenever Daxfri, Sorcerer Apprentice deals
combat damage to a player or planeswalker, put
a +1/+1 counter on Daxfri, Sorcerer Apprentice.
When Daxfri, Sorcerer Apprentice dies, it deals
damage equal to its power to any target.
{t}: Untap target Murloc.