Cleave (You may cast this spell for its cleave cost. If you do, remove the words in square brackets.)
Search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Things buried on Innistrad rarely seem to stay that way.
(19/11/2021)
If you paid the cleave cost, you must put a card into your hand as Dig Up resolves (assuming there is at least one card in your library).
(19/11/2021)
A cleave cost is an alternative cost that's paid instead of the spell's mana cost. Casting a spell for its cleave cost doesn't change the spell's mana value.
(19/11/2021)
If you cast a spell for its cleave cost, that spell doesn't have any of the text in square brackets while it's on the stack.
(19/11/2021)
You can't cast a spell for both its cleave cost and another alternative cost. For example, if an effect gives an Alchemist's Retrieval in your graveyard a flashback cost of , you can't cast it from your graveyard for its cleave cost.
(19/11/2021)
If an effect allows you to “cast a spell without paying its mana cost,” you can't cast that spell for its cleave cost.
