Phiroris of the Forests

: Forests you control become a 6/6 Treant with trample. It's still a land.
+2: Create a 6/6 Treant with trample and Forestwalk(This creature can't be blocked as long as defending player controls a forest).
-9: Create five 6/6 Treants with trample. Put them on the battlefield tapped. When this card dies, put a +2/+2 counter on each of them.