Criss, Quantum Biomagus

At the beginning of your upkeep,
create a 1/1 green insect token with flying.
{2}{u/b}: Exile Criss, Quantum Biomagus and
an insect you control, return Criss to the
Battlefield transformed under your control,
then create a 1/1 colourless insect token
with flying. Activate this ability only if you
control three or more insects.