How to Complete House Bowen's Challenge
This quest becomes available after completing Showdown.
This is a Speed Battle vs. House Bowen, and the only opponent is a giant Rafflesia. To successfully complete the quest, one of your clan's units (and not a unit from House Bowen) has to KO the Rafflesia.
The Rafflesia is weak to Fire. It can summon Malboros. It can inflict the following status ailments: Poison, Silence, Blind, Confuse, Sleep, and Slow. Be sure to equip protection against those if you can, and purchase items such as Antidotes. Remember that you can also throw a Knot of Rust at a Confused unit to remove the Confuse status without causing a lot of damage to the unit.