Wasp is a great card if your deck has the ability to pay for her, For every you spend you get 3 damage. In my book that makes her one of the best allies dealing damage so I include her a lot in my red decks. For example, is easy for Captain Marvel to pay for Wasp, beacause Energy Absorption and the fact that you are likelly making a deck with a lot of resources anyway. So if you see a way to pay for her I think it is one of the first allies you must include in your deck.
Janet Van Dyne
Attack: 3. Thwart: 1.
Wasp gets +1 hit point for each pym counter on her.
Interrupt: When Wasp enters play, place 1 pym counter on her (to a maximum of 3) for each resource you overpaid for Wasp's cost.
David Curiel & Piper Lamaz