Laduguer

Laduguer is the god of strength, conquest, and power in duergar mythology.

Vox Machina discovered an effigy of Laduguer while exploring the Emberhold. Tiberius memorized his features meticulously, and later transformed into the likeness of the god to intimidate the duergar militia in the Emberhold's throne room in order to provide a distraction while the rest of Vox Machina attacked with the element of surprise. Pike applied a spell (thaumaturgy) to amplify Tiberius's voice and Keyleth assumed the form of a giant scorpion on which he rode.