I did my Apocalypse trials on a mob that used a Paralyze TP move, so I decided to go through my logs and get some statistics. While I realize this isn't exactly new thread worthy, I figured it'd be better than having the information lost!
Lv 80:
119 Blaster
-27 Resist!
-12 Miss
Lv 81:
301 Blaster
-66 Resist!
-21 Miss
Lv85:
436 Blaster
-101 Resist!
-69 Miss
I'm fairly sure resist trait is checked before a magical evasion(normal resist), but I'm not 100% sure. I remember doing lower mobs, and having trait proc often even though I would evade majority of the time anyway. Anyway seems like a ~22% proc rate on the Resist Paralyze trait for DRK~
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