Ravnican, Firerock

Haste, Menace, Trample, Indestructible,
Doublestrike.
Other Rakdos members have Hexproof.
Put a +1/+1 counter on Ravnican Firerock
for each Rakdos guild member on the board.
(Basic lands included)
Monstrosity: {12} If this creature isnt
monstrous put 12 +1/+1 counters on it and it
becomes monstrous.