This is another one of those cards that is going to be finding it's way into a myriad of decks where characters have the same trait, and is honestly going to make "tribal" leadership decks the premium deck type due to the increased output and having less problems getting your board built on the first pass.
This also gives a massive amount of value to cards like Sky Cycle that often get passed over due to just speeding up the inevitable, but here give them extra exhausts for bonus effects while not loosing the initial production. Other cards like Flying Formation have interesting solo uses with Archangel that can be explored since it's easy to pay for and your flyers just pop back up (still likely a multiplayer card, but it is an interesting thought that could have other combo cards spring up down the line) and Archangel gets the 4 damage from playing Flying Formation, and then flip to Angel with plenty of resources and get the card draw from there.
Team Training, Uncanny X-Force, and Uncanny X-Men become easier to get out, which are already incorporated into decks which usually don't want (at least some) of your allies to leave right away. Avengers Mansion, The X-Jet and Avengers Assemble! can get worked into your turn without being the only thing you end up playing as often.
Then there are all the pricey Shield Support that just came with this card. It'll be much easier to pay for and play those cards even outside Shield characters (Maria Hill isn't alone in being able to use some of them outside leadership while including this card). And if expending tokens on your support isn't as useful this turn, they aren't just sitting there idol.
This really is a card with deep application, but does need to be built around for many characters (Not so much for Maria Hill and Star Lord) to be used effectively.