“Not great in a fight, but very festive.”
—In-game description from Fates.
The Carp Streamer (鯉のぼり Koinobori, lit. Koi Streamer) is a Club that is introduced in Fire Emblem Fates. A joke weapon that literally assumes the appearance of a festive carp streamer, the Carp Streamer is evidently ill-suited for combat due to its low Might.