Tragic Jackanapes

At the beginning of your end step, you may
sacrifice any number of permanents. For each
permanent you sacrifice this way, exile a card
from the top of your library. Until the end of
your next turn, you may play those cards.
Goblin1: It's really Jackanapes? Not Jackanape?
Goblin 2: Jack uh who?
Goblin 1: It's like a plural? With an "s?" That's odd!
Goblin 2: No, no. Letters aren't odd! Numbers are!