Cheapest priced copy (Modern Horizons 2): $0.35 at Card Kingdom, near mint, their price list as of .
Seal of Removal 
Enchantment · Common · Nemesis · #42
Sacrifice this enchantment: Return target creature to its owner's hand.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
4 printings · $0.35 to $19.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Modern Horizons 2 | 269 | Uncommon | $0.35 | $0.49 |
| Nemesis | 42 | Common | $0.59 | $19.99 |
| The List | NEM-42 | Common | $0.35 | — |
| World Championship Decks 2000 | tvdl42 | Common | $2.49 | — |
One ruling from Wizards of the Coast
- 18 June 2021Sacrificing Seal of Removal is the cost to activate its ability. Once you activate the ability, no player can do anything to Seal of Removal to stop you from activating it. Notably, if you cast Seal of Removal during your turn, you'll have priority to activate its ability before anyone can respond to stop you.