How to Complete Champions' Cup

This quest becomes available after you have completed the game and completed the quest Jylland Cup. This quest is only available in the month of Goldsun.

The objective is to defeat all foes. You must fight a Soldier, a Green Mage, a White Mage, a Viking, a White Monk, and an Archer. The Archer can inflict Doom and Charm. You can get rid of Charm by throwing a Knot of Rust at the affected unit. You can get rid of Doom by hitting the unit with a White Staff (equippable by a White Mage). The enemy White Mage can use Curaga, so you might want to kill him first to prevent him from undoing the damage that you inflict.