The Little Feed the Big

When this card enters the battlefield, all creatures with power 2 or less are destroyed.
{x} +1/+1 counters are added to a creature of your choice, where {x} is equal to the number
of power 2 or less creatures destroyed by this card.
{t}, sacrifice +2/+2 counters on
this card and summon a 5/5 whale creature token.