I've seen a few people ask in game about if damage modifiers stack so I decided to check a few (that I can without respeccing) for confirmation. Tested against the training dummies with Magic Missile. I tried a few different spells and they all gave the same result as MM so I stuck with that.
These are all OBSERVED results.
10% Elemental Empowerment (EE) via Arcane Encounter spell for 3 seconds
15% Assailing Force (AF) via Conduit of Ice
25% Ray of Enfeeblement (RoE 3 points so I assume base is 15%)
26.5% - EE*AF (tested via Entangling Force, 1.1*1.15=1.265)
37.5% - RoE for the first 3 seconds you get RoE and EE (1.25*1.1=1.376, 25% post 3 seconds.)
40% - RoE is additive with AF (1+0.25+0.15=1.4)
54% - EE is multiplicative with RoE + AF (1.1*(1+0.25+0.15)=1.54)
Using RoE in the TAB slot for double debuff is additive.
50% - 2 x RoE (1+0.25+0.25=1.5)
65% - 2 x RoE with EE for the first 3 seconds (1.1*(1+0.25+0.25=1.65)
81.5% - As above but with AF included, additive with RoE (1.1*(1+0.25+0.25+0.15)=1.815)
In short, it all stacks although some is additive and some multiplicative. However, you you want that big Ice Knife you now know what to do. With the short 3 second timer of EE you need to cast Conduit of Ice first, then double stack Ray of Enfeeblement and quickly mash Ice Knife.
No idea how it works with other class debuffs though.
Post edited by burninator42 on
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rankithMember, Neverwinter Beta Users, Neverwinter Guardian UsersPosts: 7Arc User
edited May 2013
This post kinda old, any more data to back it up?>
Ray of Enfeeble is Base 15%, +5%/+5% for a max rank of 25%.
Tabbed Ray of Enfeeble is bugged, and each cast is 50%. Double casting on same target is massive waste currently as they do not stack.
From this, there is at least 1 error in the post, but it does not necessarily dismiss the findings, because the math does not change.
I concurr all the above.
I will add that rogue's debuff (the one with stacks) stacks additively with ray and conduit of ice.
5 rogue stacks (+20%) + tabbed ray of enfeeblement (+50%) + elemental empowerement (+10%) + assailing force (+15%) = +103.5%
(1.1*(1+0.25+0.25+0.15+0.2)) = 2.035
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Ray of Enfeeble is Base 15%, +5%/+5% for a max rank of 25%.
Tabbed Ray of Enfeeble is bugged, and each cast is 50%. Double casting on same target is massive waste currently as they do not stack.
From this, there is at least 1 error in the post, but it does not necessarily dismiss the findings, because the math does not change.
I will add that rogue's debuff (the one with stacks) stacks additively with ray and conduit of ice.
5 rogue stacks (+20%) + tabbed ray of enfeeblement (+50%) + elemental empowerement (+10%) + assailing force (+15%) = +103.5%
(1.1*(1+0.25+0.25+0.15+0.2)) = 2.035