Druvis The Third

Druvis’s power is equal to the number of Forests you control.
Landfall — Whenever a land you control enters, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
If an land entering causes a triggered ability of a permanent you control to trigger, tap X amount of target permanents you don't control, put a stun counter on each of them. X equals half of the number of Forests you control.