Honestly I don't Care what name it gets but, imagine a healer that heals with potions. Not just any potions like a class specific skill but the actual potions you accumulated through the game.

1. The class uses the mind stat to increase the amount of potency a potion has.
2. The class has a passive that reduces the potions cool down timer to a percentage amount so that stronger potions still take longer to cool down but are now viable as spells spamming.
3. Buff pots can now be used as buffs for different party members from the healer.
4. The class uses TP in skills instead of mp.

These are just a few ideas. Obviously need more flushed out but a new healer is needed and with the addition of a gun blade class, i feel this would be the perfect time to add a healer that had a none magical take on healing. There are plenty of different style of potions in the game that can translate into heals similar to cure, cure 2, and so on. Whether they are class specific skills or actually putting potions on the classes hotbar and making the effects just be different when used under this class.