The Celestus - Innistrad: Double Feature - 252

Legendary Artifact

Mana Cost: {3}

If it's neither day nor night, it becomes day as The Celestus enters.
{T}: Add one mana of any color.
{3}, {T}: If it's night, it becomes day. Otherwise, it becomes night. Activate only as a sorcery.
Whenever day becomes night or night becomes day, you gain 1 life. You may draw a card. If you do, discard a card.

Rare · Innistrad: Double Feature · #252 (DBL)

Illustrated by Jonas De Ro