I'm trying to compile class features, spells, or items that let you use your gear as additional health pools. Effects like Armored Sacrifice allow you to deflect damage to an item you're wearing and I'm aware that there are more but I'm struggling to find them because the way they are worded or the effects that trigger them are not consistent. Like I'm certain there's another in 1e that let's you do the same with a weapon or a shield you're wielding in response to an attack. Spells, item mastery feats. It's an inconsistent mechanic but it comes up in a number of ways

If you know of any from either edition or phrases I could search to find them, please tell me