Your search for "explosive singularity (showcase) 422" revealed the following:
Explosive Singularity - Soft Glow Showcase (Etched) (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Ari Card Text:As an additional cost to cast this spell, you may tap any number of untapped...
Explosive Singularity - Soft Glow Showcase (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Mythic Rare Finish: Normal Artist: Ari Card Text:As an additional cost to cast this spell, you may tap any number of untapped creatures...
Explosive Singularity - Soft Glow Showcase (Foil) (NEO) from Kamigawa: Neon Dynasty, available at 401 Games Canada. Rarity: Mythic Rare Finish: Foil Artist: Ari Card Text:As an additional cost to cast this spell, you may tap any number of untapped...