Fblthp, Cot Failure

When Fblthp, Cot Failure enters the battlefield,
create an X/X blue Homunculus Giant creature
token with Trample where X is the number of
Instant and Sorcery cards in your graveyard.
{4}{u}: Exile Fblthp, Cot Failure until the next
endstep. Activate this ability only when you could
cast a Sorcery.