Aggaro, Warden of Critters

Aggaro, Warden of Critters enters the battlefield with x +1/+1 counters.
{g},{t}sacrifice 1 nut token: put a +1/+1 on Aggaro, Warden of Critters
{g}{g},{t}sacrifice 2 nut tokens: remove any number of +1/+1 counters from Aggaro, Warden of Critters, create x squirrels where x is the number of counters removed this way. then gain life equal to the number of squirrels you control