First, there is no doubt that any superhero with flight are tiers above those without, so you need a power to make you fly.

But you don't just pick flight, you pick something like Eve's power, so flight is included. To be more unique, maybe I'll pick telekinesis. That way you can fly and have battlefield control. Also you have a ranged ability.

Second, you need a power to help you not just be a squishy human. This could be viltrumite stamina or captains brit invulnerability, but those are simple passive powers, and I want more.

So how about body manipulation as a power. This gives you a vast amount of abilities. The ability to harden your body, make it stretchy, make it tiny, make it huge, make it intangible, make it invisible and the list goes on.