R: Touch D: [dice] rounds

You transfer life energy, either youth or vigor, from one person to another by touch. If youth is transferred, the source ages [sum] years per round and the recipient regains [dice] year of youth. If vigor is transferred, the source takes [dice] point of damage and the recipient regains [sum] hit points. For each each 6 rolled, the recipient is permanently altered by dark magic.

In the context of a battle, you must grapple both targets for this spell to work.

life + channel

adapted from Wonder & Wickedness