Pyro's Investigator

Trample, Deathtouch
{5}{t}: Put a loyalty counter on Pyro, Lavalord.
When Pyro's Investigator enters the battlefield, if you control a Pyro planeswalker amass 5. (Put five +1/+1 counters on an Army you control. If you don't control one, create a 0 /0 black Zombie Army creature token first.)