Jet Medallion {2}

Artifact

Black spells you cast cost {1} less to cast.

Prints	USD	EUR	TIX
Modern Horizons 3 #292	$6.32	€3.08	0.02
Modern Horizons 3 #346	$8.47		0.03
Commander Masters #395	$5.64	€3.82	0.48
Commander Masters #610	$8.85		0.82
Secret Lair Drop	$9.76
The List	$9.96	€6.67
Commander 2014	$5.07	€3.62	0.26
Tempest	$17.70	€15.03	0.39
View all prints →

The ability doesn't change the mana cost or mana value of any spell. It changes only the total cost you pay. (2023-07-28)
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. (2023-07-28)
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. (2023-07-28)

The cost reduction can apply to alternative costs such as flashback costs. (2023-07-28)
If a spell you cast has {X} in its mana cost, you choose the value of X before calculating the spell's total cost. (2023-07-28)