At first glance the stats are pretty average, even a little underwhelming, but how you combo Misty makes her absolutely top tier. First off, because she comes in with a tough card you've either got 2 blocks and 1 damage/thwart or 1 block and 4 damage/thwart. Pretty nice. But pair her with two other cards from this wave - Righteous Purpose and Defensive Formation and she gets nuts. A 2 health ally that can effectively do 12 damage/thwart or a combination thereof (even more if you just keep cycling through toughs) OR 9 damage/thwart and still block for you when the toughs run out. She pairs great with Luke Cage because Fogwell's Gym let's you get multiple uses in a turn but I can see her being a strong staple in many Defenders based teams.

Luke Cage loves this scheme to pull Knuckle Sandwich. He can use Knuckle Sandwich 5+ times to finish up a game. Going from 3 damage per event to 4 is a big damage boost. Keep Up the Pressure's 2 threat perfectly matches Luke's THW in solo. The Justice version is Generation X but it takes 3 threat instead of 2 and doesn't give a damage boost.

In multiplayer (or solo with Adam Warlock or Spider-woman), you may attach this to Live) Dangerously so that essentially everybody gains +1 hand size for a total cost of 2ER. This seems really very strong.

Outside of heroes with the giant trait like Wasp, i read this card as 3 ER: deal 3 dmg to the villain or 6 dmg to a minion. As long as you keep your hp high enough (generally 7+), this is an efficient big minion killer card.

This seems terrible. The first time you use it, you are even on cards and down whatever disadvantage the encounter brings. The second time, you are up 2 cards and down whatever disadvantage the two encounters brought - which could very easily be a trade you don't want to make.