Hazmat Salvage-Taker

Ward—Pay {1} for each card exiled with
Hazmat Salvage-Taker.
When Hazmat Salvage-Taker enters, each
player mills four cards. Then, exile all cards
from all graveyards.
{t}, {4}: Choose a card exiled with Hazmat
Salvage-Taker. You may play this card until
end of turn.