Glistening Sphere [Phyrexia: All Will Be One Commander] XY68 Set: Strixhaven: School of Mages

Set: Strixhaven: School of Mages Prerelease Promos Type: Legendary Creature — Elder Dragon Rarity: Mythic Cost: {3}{W}{B} Flying

its controller adds an additional {R}

/ Where Sleeping Dragon unveiled Han's partition:

Set: 30th Anniversary Edition Type: Creature — Dragon Rarity: Rare Cost: {4}{R}{R} Flying (This creature can't be blocked except by creatures with flying or reach

When Karrthus

Glistening Sphere [Phyrexia: All Will Be One Commander] XY68 Set: Strixhaven: School of MagesSet: Phyrexia: All Will Be One Commander Type: Artifact Rarity: Rare Cost: {3} Glistening Sphere enters the battlefield tapped. When Glistening Sphere enters the battlefield, proliferate. T: Add one mana of any color. Corrupted T: Add three mana of any one color. Activate only if an opponent has three or more poison counters.