Dave the Overlord's ultimate creation, who ends up totally usurping him, is the clone known as Omni-Dave. He's everything the original Dave (referred to as Dave Prime) isn't: big, tough, capable and smart. Very smart, in fact, with an enormous brain framed by a crown (a look inspired by Lord Ultimo in the short-lived 80s Mars Attacks comic). Alongside him are height comparisons for the other Daves (yes, there's more of them).
An idea developed with Elliot-Bloodcraft on FA.