
Sorcery
You may pay rather than pay this spell's mana cost if there are thirteen or more creatures on the battlefield.
Each player sacrifices thirteen creatures of their choice.

X-based black board wipe that scales with token/creature counts.

Black mass removal destroying all other creatures.

Flexible black sweeper that kills wide and tall boards.

Black wipe destroying all creatures you don't control.

Black board wipe destroying all creatures or all dragons.

Classic black destroy-all-creatures sweeper.

Punishes wide boards with toughness reduction and life loss.

Forces sacrifices, similar mass-sacrifice effect synergy.