INT working as intended.

[Deli]

Conclusions:

• Looking at third parser, Thundara (Thundara also have 'increased damage' effect in the combo bonus) received the major boost from INT,

• 40 extra magic potency which comes from Hexa Mask and Ifrit's Cudgel increased a very little amount in terms of damage, will devs look into this? because this would render Ifrit's Cudgel usefulness next to none when a single INT Lightning Brand will outdamage it far beyond.

sorry deleted some line of the quote.

/nod int is to magic attack bonus more, little to the magic base damage. Attack magic potency (AMP) is more to magic base damage, I actually don't think it gives thundara combo damage benefit... therefore, I don't think int will help conjure nukes more than AMP.

Lightning brand itself = ifrit's in thunder damage cus the thunder element pot = AMP. so ya when you mount any materia it will out damage ifrit's. That's only for thunder series.
but +1 int shouldn't increase that much tho... magic critical damage need to be calculated separated I think...

so...I think the best setup is follow your playing style. If you <3 combo especially thundara, go int little more. If you <3 thunder and thundaga, go AMP little more. However, a balanced setup that mixed with m. acc is better. In the end if you miss, you failed. There is no 200% acc benefit too, so don't go crazy on acc too. enough acc is enough.