Mirror Universe

Artifact, 6 (6)
{T}, Sacrifice Mirror Universe: Exchange life totals with target opponent. Activate this ability only during your upkeep.¹
Illus. Phil Foglio

Gatherer Card Rulings [Nov 2009]

• 9/16/2007: When 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.

Format Legality	Legal in Vintage, Legacy, MTGO Classic Banned in Extended, Standard
Printings (2/3)	Legends (Rare (R1)) MTGO Masters Edition (Rare)