Latest superhero/pulp/weird scifi project off the workbench, intended as a transformation set.
Doctor Ego is "just" an evil supergenius mastermind until he chugs his purple potion of power.
Then you get to face the full might of Super-Ego, whose brawn is almost as great as his matchless intellect.
Both are Reaper figs, with Super-Ego getting a much larger cranium sculpted on so the transformation is a little more obvious.
And yes, of course Doc is wearing extra-stretchy green trunks under his lab gear, because Doctor Ego is always prepared.