Rule evolution
Rule 406.3b
Earliest archived Rules release: 2021-02-05 · 0 wording revisions · 0 renumberings
Added406.3bDetails
Some spells and abilities allow a player to cast spells with certain qualities from among face-down cards in exile. A player may cast such a spell only if they are allowed to look at the face-down card in exile and if the resulting spell has the specified qualities.