1. Ronan the Accuser

When being called by Thanos after Gamora’s betrayal, Ronan the Accuser broke the Other’s neck without even blinking. And then, when he realized that he had an Infinity Stone in his possession, he mocked the Mad Titan – you called me boy?

Also part of an ancient race, this villain is also able to wield the power of an Infinity Gem. However, unlike Malekith, his purpose is different: genocide. And that surely counts. But, boy, having the stones (there’s a pun in here) to threaten the Mad Titan himself surely speaks about one’s confidence in one’s power…