Skulk (This creature can't be blocked by creatures with greater power.)
Whenever Wharf Infiltrator deals combat damage to a player, you may draw a card. If you do, discard a card.
Whenever you discard a creature card, you may pay {2}. If you do, create a 3/2 colorless Eldrazi Horror creature token.
Wharf Infiltrator's last ability triggers anytime you discard a creature card, not just when you discard a card because of Wharf Infiltrator's other triggered ability.
While resolving Wharf Infiltrator's last ability, you can't pay {2} multiple times to get multiple Eldrazi Horror tokens.