leylines
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Alternate win condition

The card says you win the game, or that a player loses the game outright, when something is true: Thassa's Oracle, Laboratory Maniac, Helix Pinnacle, Darksteel Reactor, Phage the Untouchable. A card that stops a player losing or winning (Platinum Angel, Abyssal Persecutor) is not this.

Cards that do this