“魔鬼的”的英语可以翻译为：demoniac ...

那个首领好像是魔鬼的化身。The leader seemed the devil incarnate.保佑我们不受魔鬼的侵害.Preserve us from the powers of darkness.竭尽 他自己的, 以及魔鬼的全力!-- With all his own might , and the fiend's!...