This Ritual alters the metabolic state of a creature. Living beings are left with No Metabolism; creatures with No Metabolism gain a Metabolism. In both cases, the Target will be affected differently by Healing and Necromancy effects. The effect on the Target from all Healing and Necromancy spells are reversed.
For example, if cast on a Living creature, they treat a Corrupt as a Life, and are damaged by Healing and healed by Chaos.
This does not in any way make a Living Target Undead or affected by Undead-specific effects; similarly, an Undead Target under this Ritual will still be Undead and affected by anything that specifically Targets Undead. If cast on a Living creature with a Metabolism, this is a Necromancy Aspected Ritual; if cast on an unLiving creature or a Living creature currently under Reverse Lifeforce, this is an Earth Aspected Ritual. This Ritual does not change any answers given by a player when Targeted by Healing Arts. The casting of Reverse Life Force in no way changes the appearance of the Target creature.