From Pathfinder Impossible Magic, which isn't enabled.

Bloodspray Curse

SPELL 4

CONCENTRATE CURSE MANIPULATE

Traditions divine, occult, primal

Cast

Range 30 feet

Targets 1 creature

Defense Fortitude

Duration varies

You inflict a curse upon the target that causes any wound to gush blood. The target must attempt a Fortitude save.

Critical Success The target is unaffected.

Success For 1 minute, the first time each round that the target would take at least 10 piercing or slashing damage from a single Strike, the strike deals an additional (rank ÷ 2, rounded down)d6 piercing or (rank ÷ 2, rounded down)d6 slashing damage of the same type.

Failure As success, but the Strike also deals an additional (rank ÷ 2, rounded down)d6 bleed damage.

Heightened (+2) The additional damage increases by 1d6, and the persistent bleed damage increases by 1d6.

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