Magic The Gathering
Though they are in many ways wildly different, all Planeswalkers are united by a common trait: their hunger to explore and control the vast wonders of the Multiverse. And what unites the planes of the Multiverse? Mana, the energy that infuses these worlds and fuels their magic.
Only Planeswalkers can call upon and wield this energy. While average beings are unaware of worlds beyond their own, Planeswalkers know the greater truth: each plane is but one of many, with unique mana that could be theirs to control.