Hmmm... while the existing mechanics are indeed subpar for that purpose, I don't think it would be that hard to use MeleeAppliesSpell to do a self heal?

Well I kind of meant using both. That way, you heal some when you hit, and some when you kill (at least I think that's what the OP wants).

Well, I succeeded in making my sovereign unkillable, as the effect procs when my units are hit, rather than when they hit enemies. I used the shrink mace as an outline, and made a level scaling self buff. I don't know what I'm doing wrong at this point.

I tinkered around more, and cannot make one bit of sense of this effect. I've tried heal, debuff, buff, other types, and self, enemy, and friendly targets, and now all it does is instantly heal every target to full health, even though it would be mathmatically impossible for them to heal more than 1 health per hit.

It's probably some wierd thing where the caster is actually the target or some such wierdness.

Nope. I cannot fathom the depth of how wrong this is going. I turned all the values to 0, and everything still heals to full every time I hit anything.

Not only have I started a new game for each of these tests, but I don't have any saved games at all. I'm so confused.

To have it apply to your own unit you must put <ApplyToCaster>1</ApplyToCaster> inside the modifier. MeleeAppiesSpell is by its nature an offensive spell, so giving it "Self" will do nothing.

Your Value calculation is too long. Each line of calculation can only hold 2 numbers (x +-*/ y). Use multiple calculation lines, but you have to break it up.