questions about elements exposure

Hi guys,
There is a mastery, exposure at least -18%.
Does this works with maps that has description says monsters can't be exposure?

The mastery says that if you inflict exposure it will be at least 18%. The map mod says you can't inflict exposure in the first place, so no it won't work

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Baharoth15 wrote:

The mastery says that if you inflict exposure it will be at least 18%. The map mod says you can't inflict exposure in the first place, so no it won't work

Oh no, so what does this mastery do? in PVP against others' exposure only affects 50% mastery? Any ideas in pve?

Let's say you have the eldritch implicit on your gloves with "inflict 11% lightning exposure" then that mastery would increase it to 18% exposure. Same for any other effect that inflicts exposure lower than 18% (which should be most of them iirc).

Keep in mind that this mastery quickly becomes useless if you have other effects that increase exposure like the "additional 5% exposure" from fire mastery or the elementalist ascendancy passive that increases exposure by, i think, 20%. If your exposure is above 18% already due to other effects, the 18% minimum become useless.