Dross Maw

Deathtouch

Whenever Dross Maw becomes tapped, you may exile a card from your graveyard and put a landfill counter on it.

When Dross Maw dies, you may cast any number
of spells in exile with landfill counters on them until the end of your next turn. You may spend mana as though it were mana of any color to cast them.