Instructions
Go to the inn in Stornway Town, and talk to Patty to start the character recruiting process. Patty offers you three pre-set characters to take with you. Accept them, if desired, or design your own.
Exit Stornway Town to get to the Western Stornway region. Walk west, and take the path north past the castle. You reach the Zere region. Follow the path to trigger the battle with the Wight Knight.
Cast the Sap spell as soon as the fight starts. This lowers the Wight Knight's defense. Each time you cast it, Sap lowers Wight Knight's defense a bit more.
Cast Buff on everyone in the party to raise their defense. This protects each character if Wight Knight uses the powerful Bolt Cutter move. If you do not cast Buff, a character hit with Bolt Cutter may die in one hit. Wight Knight also knows Multithrust. This attack hits several characters at once.
Attack Wight Knight with physical attacks as often as possible. Wight Knight takes more damage from physical attacks than magic attacks.
Have a mage cast healing spells to keep your party strong. If the mage does not know a healing spell or she runs out of magic power, use an item like Medicinal Herb or Panacea.
Cast black magic to damage Wight Knight if the party is healthy and does not need healing. Keep using physical attacks until you reduce Wight Knight's HP from 296 to zero.