Channel
Sorcery
Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add 
.
To some mages, the meaning of life is less important than how much is left.
Rebecca Guay
Rulings
Once your life total is 0, you can't pay any more life, even if you've somehow not lost the game yet.
(wotc • 2017-11-17)
Rulings
Once your life total is 0, you can't pay any more life, even if you've somehow not lost the game yet.
(wotc • 2017-11-17)