Grubfather, Lonely Grub

{1}{g}{g}: Create a 1/1 green grub food creature
token with "{2} Sacrifice this creature: gain 3 life."
{x}{1}{g}{g}: Create X 1/1 green grub food creature tokens with "{2} Sacrifice this creature: gain 3
life."
{b} Sacrifice 8 other grubs you control: Transform Grubfather, Lonely Grub. 7/7>