Chance the Goblin Spammer

{r}{r}{t} Until the end of your next turn,
whenever a creature token is created,
you create a 1/1 Red Goblin creature token.
(This ability does not proc itself.)
Whenever Chance the Goblin Spammer becomes
the target of a spell that would destroy or exile it,
Chance the Goblin Spammer creates X 1/1
Red Goblin creature tokens, where X is
the converted mana cost of that spell.