闇堕ちへは格上に勝つために仕方なく堕ちるのが好き。リミット付きで自我保てると尚良い。（例:虚化、ビルドハザードフォーム等）

I like when they have to fall to the darkness in order to beat the status quo. It's even better when they can keep their wits, within a certain limit. (e.g. emptiness, Kamen Rider Build Hazard Form, etc.)