Supply Scavenger

When Supply Scavenger enters the battlefield,
haul 2. Then, mill the top card of your harbor.
Supply Scavenger deals damage to any target
equal to the mana value of the card milled this
way. (Look at the top two cards of your library. Put
any number of them on the bottom of your harbor and
the rest on top of your harbor in any order. Your
harbor is a separate face up library.)