As long as Grist, the Hunger Tide isn't on the battlefield, it's a 1/1 insect creature in addition to its other types.
[+1] Create a 1/1 black and green Insect creature token, then mill a card. If an Insect card was milled this way, put a loyalty counter on Grist and repeat this process.
[-2] You may sacrifice a creature. When you do, destroy target creature or planeswalker.
[-5] Each opponent loses life equal to the number of creature cards in your graveyard.
Near Mint - $26.80
Lightly Played - $24.10
Played - $18.70
Heavily Played - $16.10
Damaged - $13.40
Near Mint Non-English - $26.80
Lightly Played Non-English - $24.10
Played Non-English - $18.70
Heavily Played Non-English - $16.10
Damaged Non-English - $13.40
Foil Prices
Near Mint Foil - $33.90
Lightly Played Foil - $30.50
Played Foil - $23.70
Heavily Played Foil - $20.40
Damaged Foil - $17.00
Near Mint Foil Non-English - $33.90
Lightly Played Foil Non-English - $30.50
Played Foil Non-English - $23.70
Heavily Played Foil Non-English - $20.40
Damaged Foil Non-English - $17.00