Dredging Dinghy

Crew 3 (Tap any number of other untapped
creatures you control with total power 3 or greater:
This permanent becomes an artifact creature until
end of turn.)
While Dredging Dinghy is a creature, creatures
in your graveyard have Dredge 3. (If you would
draw a card, instead you may mill 3 cards. If you
do, return this card from your graveyard to your
hand.)