Cheapest priced copy (New Phyrexia): $0.99 at Card Kingdom, near mint, their price list as of .
Soul Conduit 
Artifact · Rare · New Phyrexia · #158
{6}, {T}: Two target players exchange life totals.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $0.99 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| New Phyrexia | 158 | Rare | $0.99 | $2.99 |
4 rulings from Wizards of the Coast
- 1 June 2011If a player can’t gain life, that player can’t exchange life totals with a player with a higher life total. If a player can’t lose life, that player can’t exchange life totals with a player with a lower life total. In either of these cases, neither player’s life total will change.
- 1 June 2011When 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 June 2011In a Two-Headed Giant game, each player is considered to have the same life total as their team. If the two targeted players are on different teams, the teams will end up exchanging life totals. If the two targeted players are teammates, nothing will happen.
- 1 June 2011If one of the targeted players is an illegal target when the activated ability tries to resolve, the exchange won’t happen. Neither player’s life total will change.