Felics, Abyssal Gluttony

Colorless spells you cast from your hand with
mana value 7 or greater have “Cascade, cascade.”
(When you cast one, exile cards from the top of your library until you exile a nonland card that costs
less. You may cast it without paying its mana cost.
Put the exiled cards on the bottom in a random
order. Then do it again.)

Whom said too much catnip causes trouble?