Thor, Great Squirrel-Lord

{r}{g}, {t}: Other Squirrel creatures you control
gain haste and trample until end of turn.
{2}{g}, {t}: Thor, Great Squirrel-Lord deals X
damage to target creature with flying where X is
equal to the number of Squirrels in play.
{3}{w}, {t}: You gain 1 life for each Squirrel in
play.