Cure V

[Motenten]

Tweak it so its potency is dependent on a high percentage of the target's Max HP, perhaps?

That wouldn't work. Anything that would be remotely useful outside Abyssea and could still cure more than Cure V would be ludicrously overpowered inside Abyssea. Anything balanced for inside Abyssea would be pathetically weak outside Abyssea.

EG: Mnk inside Abyssea with 3600 HP. 2/3 of his HP would be 2400 HP cured; quite potent. Now cure the nin outside Abyssea with 1200 HP for 2/3 of his max HP: 800. Not worth the effort.

[Dantedmc]

Cure VI is useful in the situations where you need heavy healing abyssea and voidwatch. Abyssea obviously you aren't running out of mp. Voidwatch also allows you to have plenty of mp conservation. Up to 7 tic gear refresh, /sch or /rdm, +2 pants, and 2x Lucid Ether II / Mana Powder (If you have your periapts) that get recharged everytime you proc the nm. Don't get me wrong I want cure VI's mp cost lowered and they could even throw in another bonus such as enhanced cureskin +15%. However Currently Cure VI is a nice addition when you need to do heavy healing.