The Ent, Root Monstrosity

Trample, Menace
Whenever this creature is dealt damage, create
three 2/1 black and red Rot Wart creature tokens
with menace, wither, and "Whenever this blocks
or becomes blocked, sacrifice it. it deals 2 damage
to each creature blocking or being blocked by it.".
"The ground shakes, only as a reminder of the days
and times the monstrosity tore through what use to be civilizations."