Cheapest priced copy (Modern Horizons 2): $0.35 at Card Kingdom, near mint, their price list as of .
Seal of Cleansing 
Enchantment · Common · Nemesis · #18
Sacrifice this enchantment: Destroy target artifact or enchantment.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
10 printings · $0.35 to $54.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2015 | 79 | Common | $0.39 | — |
| Eternal Masters | 26 | Common | $0.39 | $0.99 |
| Friday Night Magic 2005 | 2 | Rare | — | $8.99 |
| Modern Horizons 2 | 264 | Uncommon | $0.35 | $0.49 |
| Murders at Karlov Manor Commander | 80 | Common | $0.35 | — |
| Nemesis | 18 | Common | $1.79 | $54.99 |
| The List | EMA-26 | Common | $0.35 | — |
| World Championship Decks 2000 | nl18sb | Common | $2.79 | — |
| World Championship Decks 2000 | tvdl18 | Common | $8.49 | — |
| World Championship Decks 2000 | tvdl18sb | Common | $5.49 | — |
One ruling from Wizards of the Coast
- 18 June 2021Sacrificing Seal of Cleansing is the cost to activate its ability. Once you activate the ability, no player can do anything to Seal of Cleansing to stop you from activating it. Notably, if you cast Seal of Cleansing during your turn, you'll have priority to activate its ability before anyone can respond to stop you.