Sapphire Medallion

Jul 28, 2023 · If a spell you cast has {X} in its mana cost, you choose the value of X before calculating the spell's total cost.

Jul 28, 2023 · If there are additional costs to cast a spell, or if the cost to cast a spell is increased by an effect (such as the one created by Thalia, Guardian of Thraben's ability), apply those increases before applying cost reductions.

Jul 28, 2023 · The ability doesn't change the mana cost or mana value of any spell. It changes only the total cost you pay.

Jul 28, 2023 · The cost reduction can apply to alternative costs such as flashback costs.

Jul 28, 2023 · The ability can't reduce the amount of colored mana you pay for a spell. It reduces only the generic mana component of that cost.