You impair a target's vitality, causing it to steadily lose health.

The target must make a Constitution saving throw, potentially receiving some stacks of

Sap

Critical Success (+10). The target is unaffected.
Success. The target receives 1 stack of Sap.
Failure. The target receives 3 stacks of Sap.
Critical Failure (–10). The target receives 6 stacks of Sap.

At Higher Levels: Target an additional creature for each spell level increase. The additional creatures must be within 6m of the original target.