Discover
MTG Mechanic
Discovery is an exciting pursuit. You never know what you'll find! Well, you might know, actually, because the discover keyword action allows you to dig into your library and cast something for free.
Discover Rules
A keyword ability that may allow a player to cast a random spell for free. See rule 701.57, “Discover.”
- 701.57a: “Discover N” means “Exile cards from the top of your library until you exile a nonland card with mana value N or less. You may cast that card without paying its mana cost if the resulting spell’s mana value is less than or equal to N. If you don’t cast it, put that card into your hand. Put the remaining exiled cards on the bottom of your library in a random order.”
- 701.57b: A player has “discovered” after the process described in 701.57a is complete, even if some or all of those actions were impossible.
- 701.57c: If the final card exiled during the process described in rule 701.57a has mana value N or less, it is the “discovered card,” regardless of whether it was cast or put into a player’s hand.
MTGA Sets with Discover
Newest Cards with Discover















