Collecting evidence is a cost that you may be asked to pay when activating an ability, casting a spell, or even as an additional cost imposed by a ward ability
Midnight Hunt's Artifacts & Lands Among the artifacts of Innistrad: Midnight Hunt , The Celestus is the most valuable, a unique legendary artifact that can change day into night or night into day at sorcery speed, which can massively benefit certain draft decks, especially Werewolf tribal builds
Technically, it is possible to send a FIRE Elemental HERO Fusion Monster with this effect, but the gains from doing so are limited
This can be surprisingly useful if you put your mind to it
Ash Blossom & Joyous Spring to negate a searching effect
Unlock the terrifying secrets of new themes, find brand-new cards for recent favorites, and meet more memorable monsters