ETCHEDCheapest priced copy (Kamigawa: Neon Dynasty): $0.99 at Card Kingdom, near mint, their price list as of .
Explosive Singularity 
Sorcery · Mythic · Kamigawa: Neon Dynasty · #422
As an additional cost to cast this spell, you may tap any number of untapped creatures you control. This spell costs {1} less to cast for each creature tapped this way.
Explosive Singularity deals 10 damage to any target.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
6 printings · $0.99 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kamigawa: Neon Dynasty | 140 | Mythic | $0.99 | $1.99 |
| Kamigawa: Neon Dynasty | 383 | Mythic | $1.49 | $1.49 |
| Kamigawa: Neon Dynasty | 422 | Mythic | — | — |
| Kamigawa: Neon Dynasty | 464 | Mythic | $1.29 | $1.99Out of stock |
| Kamigawa: Neon Dynasty Promos | 140p | Mythic | $1.79 | $4.49 |
| Kamigawa: Neon Dynasty Promos | 140s | Mythic | — | $1.99 |
One ruling from Wizards of the Coast
- 18 February 2022Explosive Singularity's additional cost can't reduce its cost below {R}{R}. You can tap any number of untapped creatures, however, even if they won't reduce the cost further.