Cheapest priced copy (Ravnica Remastered): $7.49 at Card Kingdom, near mint, their price list as of .
Blind Obedience 
Enchantment · Rare · Gatecrash · #6
Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)
Artifacts and creatures your opponents control enter tapped.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
9 printings · $7.49 to $37.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2016 | 59 | Rare | $7.99 | — |
| Commander 2017 | 57 | Rare | $8.99 | — |
| Gatecrash | 6 | Rare | $8.99 | $10.99Out of stock |
| Ravnica Remastered | 9 | Rare | $8.49 | $7.99 |
| Ravnica Remastered | 303 | Rare | $7.49 | $9.99 |
| Ravnica Remastered | 303z | Rare | — | — |
| Secret Lair Drop | 1030 | Rare | $22.99 | $37.99 |
| Secret Lair Drop (Crimson Moonlight) | 2246 | Rare | — | — |
| Wilds of Eldraine: Enchanting Tales | 1 | Rare | $7.49 | $11.99 |
4 rulings from Wizards of the Coast
- 12 January 2024The extort ability resolves before the spell that caused it to trigger. The ability resolves even if that spell is countered.
- 12 January 2024The extort ability doesn't target any player.
- 12 January 2024The amount of life you gain from extort is based on the total amount of life lost, not necessarily the number of opponents you have. For example, if your opponent's life total can't change (perhaps because that player controls Platinum Emperion), you won't gain any life.
- 12 January 2024You may pay {W/B} a maximum of one time for each extort triggered ability. You decide whether to pay when the ability resolves.