Cheapest priced copy (Legends): $379.99 at Card Kingdom, near mint, their price list as of .
Mirror Universe 
Artifact · Rare · Oversized League Prizes · #16
{T}, Sacrifice this artifact: Exchange life totals with target opponent. Activate only during your upkeep.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $379.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Legends | 287 | Rare | $379.99 | — |
| Oversized League Prizes | 16 | Rare | — | — |
2 rulings from Wizards of the Coast
- 16 September 2007When the life totals are exchanged, each player gains or loses the amount of life necessary to equal the other player’s previous life total. For example, if player A has 5 life and player B has 3 life before the exchange, player A will lose 2 life and player B will gain 2 life. Replacement effects may modify these gains and losses, and triggered abilities may trigger on them.
- 1 January 2011If an effect says that a player can’t lose life, that player can’t exchange life totals with a player who has a lower life total; in that case, the exchange won’t happen.