Sylvan Elite

Whenever another nontoken Elf creature enters the battlefield under your control, put a +1/+1 counter on Sylvan Elite.
{x}{g}{g}, Remove X +1/+1 counters from Sylvan Elite: Create X 1/1 green Elf creature tokens.
Elfcycling {2}{g}{g}
"We are the inheritors of Mother Nature, and we shall defend her until our last breath."