さめはだてながだこであれば
鮫肌手長蛸であれば
samehadatenagadakodeareba

Noun
Da Copula

The "-eba" conditional form ("if/when…") of さめはだてながだこ

1. If it were a long-armed octopus with sharkskin…; If being a long-armed octopus with sharkskin…

Ba Conditional
Usually Written in Kana