
Sorcery
Each opponent loses X life. You gain life equal to the life lost this way.

X-cost black finisher forcing opponents to lose resources or life.

X drain hitting each opponent and gaining you life.

Devotion-based mass drain finisher in mono-black.

Suspend tutor often used to find big X-spell finishers like this.

X-cost direct life loss finisher in another color.

X drain that also costs life, similar swingy finisher.

Repeatable drain-and-gain finisher in black.

Black big-mana payoff card alongside ramp-fueled X spells.
→ Near-infinite lifegain, Near-infinite lifeloss
→ Near-infinite lifegain, Near-infinite lifeloss, Near-infinite red mana
→ Near-infinite lifegain, Near-infinite lifeloss
→ Near-infinite draw triggers, Near-infinite lifegain, Near-infinite lifeloss
→ Near-infinite lifegain, Near-infinite lifeloss
→ Near-infinite lifegain, Near-infinite lifeloss
Players can lose more life than they have. For example, say you're playing a multiplayer game in which one of your opponents has 3 life and your other opponent has 10 life. If you cast Exsanguinate with X of 4, your opponents will wind up at -1 life and 6 life, respectively. You'll gain 8 life.