Pool 2 control

Swaps:

Yondu/Korg - I personally prefer yondu as it gives you a scouting possibility, which is important in case of playing control deck 

Gamora/Spider-Woman/Black Panther - powerfull 5 drops, where spiderwoman can be find to be most consistent of all those three cards (for example, you don't need to be careful of shang, and you know where enemy has cards)

Shang-chi/Enchantress - depends on what you face the most, feel free to swap it constantly.

Combos:

Angela + bunch of 1 drops for power (and nightcrawler to empty the spot)

Odin - probably no need to explain. :)

Storm + Jessica - very strong way to secure one location. You can also pretty easily add some power later on with Nightcrawler and White tiger if needed