Kill Beastman of Farum Azula (BOFA) duo

To complete this square you need to defeat the Beastman of Farum Azula duo boss, in the Dragonbarrow Cave. Wait until the "ENEMY DEFEATED" or equivalent screen appears to mark the square.

This duo boss is available from the start of the game, but can be a very tough fight due to the scaling of the area. It counts as a cave for the square Complete 3 cave or grotto dungeons. It also has synergy with Kill 3 duo/trio bosses.