It's Nagus the Wizard ...
He just returned from the annual Eternian "Spell And Powerful Potion Yardsale" (otherwise known as SAPPY).
"Curse those snakemen!", he mutters angrily to himself, "They said that the batteries were included with this magic staff And it needs alkaline D cells too!"
(MOTUC body, Remco Deimos head, Merman armor, DC Direct Mcguinness Manhunter cape, Sigma Six wand).