おにぼうずきすであれば
鬼坊主鱚であれば
oni bōzu kisudeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of おにぼうずぎす

1. If/when the ghost-monk whitings…; If the ghost-monk whitings were…

Ba Conditional
Usually Written in Kana