Ariete, the Bronze Horned

Trample, vigilance
Whenever you gain life, you may create a 0/1
green and white Goat creature token.
{g}{w}, Sacrifice a Goat: Put a +1/+1 counter
on each Goat you control.
"Whether it is an omen of extinction or a promise of
hope, the Church of Tal is interested in harnessing it"