Fabled Hydra

trample, menace
When Fabled Hydra enters the battlefield, create
a 4/1 Spare Head creature token and put a +1/+1 counter on Fabled Hydra.
When Fabled Hydra or a creature you control
named Spare Head is dealt damage, populate,
then proliferate.
"Don't focus on the heads, Idiot!"
-Unknown Selesnya Dragontamer