Final Fantasy Tactics Walkthrough

This battle throws a new complication at you - it's the first appearance of enemy Lancers, and they have good terrain traversal and strong ranged attacks. The best way to deal with them is to use some sort of Oracle spell (or Mustadio ability) to stop them from moving or acting, then light them up from outside their range.

If you're using a Summoner, launch a powerful summon their way, but make sure that they won't move away from it in the time it takes to cast. Once the Lancers have been handled, the rest of the battle is up to you. The Time Mages will be the biggest threat of the second line since the Chemist is unusually weak in this battle, but it doesn't matter how you handle them all if the Lancers are out of the way.

Unfortunately, the Lancers can take quite a bit of abuse and their two-tile attack radius with lances can quickly corner your characters in the tight confines of the upper area, so be prepared for the battle to start very slowly and require some healing. If you can hang back a little to allow the Lancers into your envelope and trap them there, and survive the first couple turns, you should be able to manage without too much trouble.