Cheapest priced copy (Commander 2018): $0.35 at Card Kingdom, near mint, their price list as of .
Soul Snare 
Enchantment · Uncommon · Modern Horizons 2 · #387
{W}, Sacrifice this enchantment: Exile target creature that's attacking you or a planeswalker you control.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
8 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2018 | 76 | Uncommon | $0.35 | — |
| Commander 2021 | 104 | Uncommon | $0.35 | — |
| Commander Anthology | 24 | Uncommon | $0.35 | — |
| Commander 2011 | 32 | Uncommon | $0.49 | — |
| Modern Horizons 2 | 266 | Uncommon | $0.35 | $0.49 |
| Modern Horizons 2 | 387 | Uncommon | $0.35 | $0.49 |
| Murders at Karlov Manor Commander | 85 | Uncommon | $0.35 | — |
| Starter Commander Decks | 34 | Uncommon | $0.35 | — |
2 rulings from Wizards of the Coast
- 18 June 2021Sacrificing Soul Snare is part of the cost to activate the ability. Once you activate the ability, no player can do anything to Soul Snare to stop you from activating it.
- 18 June 2021If Soul Snare's ability targets a creature that's attacking a planeswalker you control, but that planeswalker is no longer on the battlefield as the ability tries to resolve, the attacking creature will be an illegal target and Soul Snare's ability won't exile that creature.