Onion equipment is some of the best stuff in the game, but exclusive to Onion Knight, the default job which has extremely poor stats (until after Lvl 90 after which their stat growth is phenomenal).
Crystal Tower 5F: Best place to find Yellow Dragons, which drop Onion shield, Onion helm, Onion sword
Crystal Tower 6F: Best place to find Green Dragons, which drop Onion shield, Onion gauntlets, Onion sword
Crystal Tower 7F: Best place to find Red Dragons, which drop Onion shield, Onion armor, Onion sword
![](https://i.ytimg.com/vi/9-Sr48uj1qg/maxresdefault.jpg)