Avatar of Plenty

At the beginning of your upkeep, double the
number of +1/+1 counters on Avatar of Plenty.
At the beginning of your end step, populate.
{2}{u}{g}: Put a +1/+1 counter on target creature.
{2}{u}{g}: Create a 2/2 Human creature token
that's all colors.
Strength in numbers, strength in power.