Budding Flumph

Convoke (Your creatures can help cast this spell.
Each creature you tap while casting this spell pays
for {1} or one mana of that creature's color.)

When Budding Flumph enters, create X 0/3 white Jellyfish creature tokens with flying. If X is 9 or greater, instead, create eight 0/3 white Jellyfish creature tokens with flying and draw cards equal to the difference between eight and X.