Yes Eleweakness debuff + Elemental Equilibrium debuff stack. But you are getting it wrong. You have lightning damage on your gloves, so with a clean weapon it will apply Elemental equilibrium -50 fire -50 cold and + 25 lightning, and your curse will do -31 all, so you have in the end -81 fire -81 cold -6 lightning. All elemental resistances are now negative, this is why you get the "vulnerable to elemental damage".
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Last edited by Zybeline2#7822 on Aug 18, 2015, 6:04:36 AM