Cheapest priced copy (Commander 2021): $0.35 at Card Kingdom, near mint, their price list as of .
Suffer the Past 
Instant · Uncommon · Rise of the Eldrazi · #128
Exile X target cards from target player's graveyard. For each card exiled this way, that player loses 1 life and you gain 1 life.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.35 to $2.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2021 | 155 | Uncommon | $0.35 | — |
| Modern Horizons 3 Commander | 205 | Uncommon | $0.35 | $0.49 |
| Rise of the Eldrazi | 128 | Uncommon | $0.35 | $2.49 |
3 rulings from Wizards of the Coast
- 15 June 2010The life that’s lost and the life that’s gained are based on the number of cards that are actually exiled, not on the value of X (in case any of the targeted cards somehow leave the graveyard in response and thus can’t be exiled this way).
- 15 June 2010If the targeted player becomes an illegal target by the time Suffer the Past resolves but the targeted cards don’t, you still exile the cards and gain life. The player won’t be lose any life, though.
- 15 June 2010Suffer the Past’s effect causes a single life-gain event, not a number of separate ones. This matters for cards such as Cradle of Vitality.