Knight of the Old Growth

Knight of the Old Growth enters the battlefield
with three growth counters on it. (If a permanent
with a growth counter becomes tapped, you may
remove a growth counter from it and add {c} or one
mana of its color. Until end of turn, you don't lose this
mana as steps and phases end. )
Whenever a growth counter is removed from
Knight of the Old Growth, create a 0/1 green
Plant creature token.