Only reason I'm confused with your statement about magic skill, and not affinity because I know the elemental staves have shown to give a higher stat boost to magic accuracy of the element it represents. However I thought magic skill also contributes to Accuracy and not just affinity bonus equipment. Just not as high as Affinity gear.
Bind
Spell cost: 8 MP
Spell element: Ice
Magic skill: Enfeebling Magic
I also thought weather, such as SCH storms, would contribute to element of the spell.
When Meriting BLM, I've read articles that Placing Merits into Ice and Stone would further increase accuracy for Paralyze and Slow.
Trial and error I've played WOE so many times that when casting Blind with Enfeebling, high INT, magic accuracy gear. I've noticed blind land better when using Dark magic skill gear such as Archon ring, crimson fingers. And yes I've only switch over to dark magic gears as a last resort after failing to land 3-5 times.
