Malphas

In demonology, Malphas is a demon who first appears in Johann Weyer's Pseudomonarchia Daemonum. That work and the Lesser Key of Solomon describe him as a mighty Great President of Hell, with 40 legions of demons under his command and is second in command under Satan. He appears as a raven, but if requested, will instead resemble a man with a hoarse voice. Malphas is said to build houses, high towers and strongholds, throw down the buildings of enemies, destroy enemies' desires or thoughts (and/or make them known to the conjurer) and all that they have done, give good familiars, and quickly bring artificers together from all places of the world. According to the writers, Malphas accepts willingly and kindly any sacrifice offered to him, but then he will allegedly deceive the conjurer.