Spon

ward 2
If one or more tokens would be created
under your control, twice that many of
those tokens are created instead.
This only activates once per turn.
{g/w}{g/u},{t}Sacrifice X non-plant token creatures:
create X green 0/1 plant tokens
{1}{g/w}{g/u},{t} Sacrifice X non-plant token creatures:
give each plant token under your
control X +1/+1 counters