trouble making a regen spell..

[Ellary]

hello, I am simply stuck I have looked all over..well I think anyway in the creation kit. Have patched my game fully up on steam to see if it unlocked more..but I am unable to find out how to make a regeneration spell, food does it but its weak and my companions wont eat food..So is there anyway at all I can safely make a regenerate Health over time spell? am in the process of making a lot of monsters harder so the fights last longer which is why I need a regen spell.