Cpt Marvel - Mightiest Avenger

Deck runs 9 allies and 2x Calls for aid so generally, each round you should have an ally at hand if you wish to.
Her kit of "energy absorption" as well as the basic double resource cards, band together and power of leadership make it really easy to play even the higher-costing heroes like falcon, giant man, cpt america.
Avenger's tower is a bonus to this ofc along side the extra effect of 4 allies being on board at a time.
Black panther provides much utility since on a half full deck, there will be a lot of options (9 events).
Kaluu should provide a card too, entering play, though it's not guaranteed.
White tiger also offers draw.
Cpt america is beefy with a tough status and can be played with as much as 1 mana (cpt marvel, 3 allies, exh avengers tower).
Falcon helps with thwarting and Hawkeye with minions. Latter is a joy vs villains like mutagen formula or ultron. Ant-man can be played with 1 mana if you re desperate for a body to defend with or with max if you have surplus mana.
Make the call and rapid response can also get you someone back depending on what you need. Call for aid also helps with surplus mana, thining the deck down to allies, basically virtually changing it into 11/40 allies.
As with allies, your great mana resource and drawing also helps with casting big supports like avengers mansion, quincarrier and mighty avengers relatively fast.
Clarity of purpose is prettt much a free draw every round that you can utilize using cpt Marvel's hero action. Unless the villain has stalwart or changes identities like sinister six, you can have 2 really big rounds when you confuse with spiderwoman: clarity of purpose, swap to alter ego, draw from alter ego, draw from alpha station and whatever you have and next round vice versa.
Starting hands that would be great would include spider woman, alpha station, kaluu, white tiger if you start with villain on 2nd stage, a combination of avengers mansion/quincarrier + energy absorption.
Have fun when you give it a try!