You don't lose the game for having 0 or less life. As long as you have 0 or less life, all damage is dealt to you as though its source had infect. (Damage is dealt to you in the form of poison counters.)

Legalities

tlrlegal

duellegal

brawllegal

pennylegal

PreDH

Rulings · 4

2011-06-01wotc

If you’re at 0 or less life and Phyrexian Unlife leaves the battlefield, you’ll lose the game (unless some other effect is keeping you from losing).

2011-06-01wotc

You can still lose the game for other reasons, including having ten or more poison counters or drawing a card from a library with no cards in it.

2011-06-01wotc

If you’re at 0 or less life, you can’t pay any amount of life except 0.

2011-06-01

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