19 cards that define this Premodern archetype
Chromatic Sphere
Decree of Justice
Fact or Fiction
Impulse
Skycloud Egg
Skycloud Expanse
Swords to Plowshares
Urza's Mine
Urza's Power Plant
Urza's Tower
Akroma's Vengeance
Mana Leak
Prohibit
Adarkar Wastes
Flooded Strand
Island
Plains
Powder Keg