Shakaar said:
I think the bonus is +5 instead of +3, but in any event the extra MND is good for better chances of resisting white magic cast on you by mobs. And like Mist said it's good to have the arcane circle bonus against arcane mobs. Every AF set has a stat boost that seems out of the ordinary. For example my Beast Helm gives me +5 to INT, which is pretty much useless to a BST (although supposedly INT helps with resisting black magic 8) )
MNK AF stats are used in full
Temple Crown: MND+5, added Chi Blast Damage
Temple Cyclas: VIT+3, added Chakra heal value, thankfully on the same peice that also enhances Chakra itself
Temple Gloves: STR+4, if you don't know, stop playing the game.
Temple Gaiters: DEX+3, a
slight boost in accuracy and critical hit ratio. Later on, a stat that the damage from Asuran Fists draws off of. Possibly Raging Fists too.
Temple Hose have no attribute modifiers. Thus, they are permastoraged.
Also, MND affects how well debuffs work on you(Paralyze), how long they'll last, and how often you'll just totally resist. When I do Kirin with Valkyrs, and summoned Byakko does Roar, it's pretty rare for me to actually feel the effect of the Paralyze.
For example, when we did him Sunday, and Byakko Roared, I was paralyzed yes. But not once did it ever kick in, and it wore off REALLY fast. It was also Icesday.