LIFE LEECH MEGATHREAD (If you have any issues please add your story lets bump it up)

Hello. So I was testing Bloodmage spell leech mastery (10% of spell damage leeched) and by hitting frost bomb onto 2 enemies (tooltip says 1850-2776 cold damage and 65% cold res penetration) I had leeched... TWENTY HP BACK. while the skill costs 100 hp to cast.

Is this the same bug that happened when necromancy ascendancy was reworked and minions leeched 1% instead of specified 10%?

I saw some other thread about life leech rune being bugged. So decided to just bump thread of life leech in general as I feel like its clearly not working as intended or we lack critical information about mechanic of leech and would love to it being clarified.

Hey, same happens to me. Somehow, i can't leech. I'm using Bonestorm.

For Acolyte of Chayula all gear mana leech mods don't work, unless you put in the mana leech gem. Then it appears in the tool tip for that particular skill. But it still almost doesn't leech anything for that attack then, just as if the mobs have 99% leech resist.

Pretty rough that this is such a game breaking problem for so many people and it doesn't even appear in GGGs list of known issues...

Yeah. It feel like leech resistance is like 99.9% at times even. Like if I use COMET that costs me 378hp to cast I expect the life bar to at least move a little when hitting enemy and not that it leeches me 20hp back