SFS Standard Drain Blood [one-action] Feat 9

Source Galactic Ancestries pg. 166
Frequency once per 10 minutes
Requirements A creature within your reach is taking persistent bleed damage, or is grabbed, paralyzed, restrained, unconscious, or willing.
You jab your proboscis into the required creature to consume their blood. Attempt an Athletics check against the target's Fortitude DC. You automatically succeed on this check if the target is paralyzed, unconscious, or willing (but you still roll to see if you get a critical success). On a success, the creature becomes drained 1 (drained 2 on a critical success), and you gain temporary Hit Points equal to the target's level that last for 10 minutes.

Traits

Healing:A healing effect restores a creature's body, typically by restoring Hit Points, but sometimes by removing diseases or other debilitating effects.
Manipulate:Actions with this trait require you to physically manipulate an item or make gestures to use. Creatures without a suitable appendage can't perform actions with this trait. Manipulate actions often trigger reactions.
Orocoran:A creature with this trait is a member of the orocoran ancestry. They are spindly aberrations mutated by the eldritch fluids of Aucturn who yearn for a new identity. An ability with this trait can be used or selected only by orocorans.