Dementor's Kiss

The Dementor's Kiss is an action performed by Azkaban's Dementors. It is an action where the Dementor sucks the soul out of the person via the mouth, hence the name Kiss. It renders the person useless, and although they can still move, they cannot do anything else and are subjected to an eternal death-like state.

Victims
Bartemius Crouch Jr

Severus Snape (alternate timeline)

Hermione Granger (alternate timeline)

Ron Weasley (alternate timeline)