I started off the fight with a massive quickening chain, then ran around while I waited for my characters MP to recharge. I had Penelo come out to spam Esuna if all three of my primary were hit with ailments. once you get one or two of the mandragoras down, attack the weakest one until it dies. I didn't really have much advanced equipment, and there were a few times, were I was spamming phoenix downs, but it payed off.


Gambits are an amazing bit of help in this fight (I actually just finished it about forty-five minutes ago). The only gambits I had activiated were (in this order).

Vaan:
Ally: HP < 50% Cura
Foe: Party Leader's Target - Attack

Fran:
Ally: HP< 40% Curaga
Foe: Party Leader's Target - Attack

Ashe:
Ally: HP < 30% Curaga
Foe: Party Leader's Target - Attack

This way all characters play a role in healing, based on their role in combat. Fran was my ranged attacker, so I had her attack from a distance but throw out a curaga whenever needed. Vaan is my primary White mage, so he used cura whenever necessary. Ashe was the primary melee fighter so she healed only in dire circumstances.

My Levels were 33-36.
This is just what I did, hope this helps