Okoye 1/1/1 300 level - Healer, killer.
Medusa 5/5/3 273 level - Healer, killer. By Okoye shes got a growing demage.
Valkyrie 5/3/5 270 level - Shes like a serial killer. I advice begining 2 red color. After 3 match up red reach to 11 red. By a good timing you can eliminate 2 characters. At least you have to wait for 10 or above team-ups you have collected.
You should see what Medusa’s countdown does when Okoye is champed and boosted. :o
I’m trying…but I’m not getting enough Okoye covers! 
She’s 2/3/4 now. She is also my bonus hero, but let’s be real - how frequently do you get a 5-star bonus hero?
Even when Okoye is not boosted, just focus on collecting Team-Up AP and Medusa’s Entanglement gets downright nasty. On good days I’ve had it tick for 30K+ per turn, although it does take 20+ Team-Up AP for me to hit those numbers. What’s disappointing is that Okoye doesn’t boost Team Up powers, not even by the amount of Team Up AP you have left after using them 
She used to. I don’t even recall seeing a notice, but that got nerfed (let me check my notes) about 11/17/18. Before then, I’d save TUs from Psylocke’s black or red, or 3* Gamora’s red. It was so choice… 