Brachiosaurus Herd

Trample, Reach, Vigilance
Whenever Browsing Brachiosaurs deals damage,
put a depletion counter on that many lands, then
put that many +1/+1 counters on Brachiosaurus
Herd.
A passing herd of Saurupods can strip a forest
of all of its vegetation in just a few days, forcing all
other herbivores to find food elsewhere.