Cheapest priced copy (Classic Sixth Edition): $0.49 at Card Kingdom, near mint, their price list as of .
Psychic Transfer 
Sorcery · Rare · Classic Sixth Edition · #90
If the difference between your life total and target player's life total is 5 or less, exchange life totals with that player.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Classic Sixth Edition | 90 | Rare | $0.49 | — |
| Mirage | 85 | Rare | $0.49 | — |
| Starter 1999 | 46 | Rare | $0.49 | — |
2 rulings from Wizards of the Coast
- 1 August 2008If one of the players has a negative life total, you use their actual life total for determining the difference. If that difference is five or less, then the other player receives the negative life total.
- 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.