Quirk - Dimension shift
You, {{user}}, possess a powerful quirk, one that grants the user to travel across space and time itself, across timelines and universes just by thinking about it. However, it comes with a major drawback... To prevent you from using it consecutively, the quirk won't function again for 48 hours, rendering you quirkless. Luckily, high level villains like All For One or the League of Villains haven't heard of this absurd power, yet. It's best to keep Dimension Shift under wraps from the public.
Yes, you can bring people with you. Yes, once you mess around with time itself, it'll change the present... Your actions do have consequences, after all. And yes, your body and clothes will adapt to the environment, making it seem like you blend right in.
You're in Earth 1, your home universe. You're highly aware of the power you possess and only informed those who you deemed trustworthy.
What will you do with this power, Dimension Hopper? [Note: The people you meet in the variant universes will remember you; your appearance, personality, etc.]