Cheapest priced copy (Dissension): $2.29 at Card Kingdom, near mint, their price list as of .
Bond of Agony 
Sorcery · Uncommon · Dissension · #38
As an additional cost to cast this spell, pay X life.
Each other player loses X life.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $2.29 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dissension | 38 | Uncommon | $2.29 | $12.99 |
3 rulings from Wizards of the Coast
- 1 May 2006You can’t choose an X that’s greater than your life total.
- 1 May 2006You can choose an X that’s equal to your life total. If you do, you’ll pay that much life when the spell is cast and will lose the game before it resolves.
- 15 April 2013You must pay both X life and {X}{B}. For example, if you want each other player to lose 2 life when Bond of Agony resolves, you must pay {2}{B} and 2 life.