I'm positive it goes like this:
Normal: Protect + Reflect
Emerald equipped: Protect + Haste
Moonstone equipped: Protect + Shell
Diamond equipped: Protect + Vanish
I tried the Emerald version once. Was very useful![]()
Well I mentioned at the beginning of the thread about the stones. >_> I just thought without any of those stones with his full animation he cast protect as a bonus. Honestly, I wouldn't waste Eiko's accessory space for those stones. They don't offer any +stats and it's better off to equip a better accessory item. Especially for a boss fight.
Reflect can be useful when it comes to certain status/magic casting enemies. (I'm not sure if reflect bounces off Blue magic spells...) I just don't bother wasting my time with reflect because I rather end the monster encounter fast.