Cheapest priced copy (Magic 2013): $0.35 at Card Kingdom, near mint, their price list as of .
Turn to Slag 
Sorcery · Common · Magic 2013 · #153
Turn to Slag deals 5 damage to target creature. Destroy all Equipment attached to that creature.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
3 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Magic 2013 | 153 | Common | $0.35 | $0.49 |
| Core Set 2021 | 168 | Common | $0.35 | $0.49 |
| Scars of Mirrodin | 106 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 23 June 2020If the target creature is an illegal target by the time Turn to Slag tries to resolve, the spell won't resolve. You won't destroy any Equipment.
- 23 June 2020Turn to Slag can target a creature that has no Equipment attached to it.