On Earth 2, Reverb threatens Deathstorm and Killer Frost by saying he’ll “fry their nervous system”. Does that mean that, if Cisco gains the same amount of control over his power that his doppelganger had, he’ll be powerful enough to kill Supergirl? (Not that he would or would want to)
Because it seems to me that Cisco has the potential to be the most powerful person in the Arrowverse with his power set. Which is why his powers are so hard to master. Everyone else learns at least the basics of their power pretty quickly. Cisco’s power took a long time to manifest, and then for a long time he couldn’t control it at all, and then it took special tools/technology to use it at its most basic level, and he’s now gained a lot more control but he’s still not at the level we know he’s capable of. It’s the same principle applied to Hiro and Peter on Heroes- their full power would make them too powerful so their power has to be one that’s more difficult to learn how to use, to balance things out.