Need 2* Roster Advice

Day 103 player here, but working on being more active on the forums. So after this Heroic Mode and First Avenger PVP, I will be maxing out my 2* Thor. However, I need some advice on what character(s) to work on next. I am not looking for quick, significant boosts, but advice on what to build up over the next several weeks. I will have about 10 to 12k of ISO to spend, and I know that Thor will cost about 8k of that total.

Here is my current roster of characters that I want advice on (they don’t have the most ideal build):
MN Magneto, 4/5/4, lvl 50
OBW, 5/3/5, lvl 45
A-wolvie, 4/4/5, lvl 40
C. Storm, 5/4/4,lvl 35

Any advice will be much appreciated.

Looks like a pretty easy Thor/Wolvie/OBW to me. MN Mags and C. Storm are only good when paired together, but the problem with that duo is that they are really weak on defense. Since you have the option between the two, OBW/Wolvie are a lot better on defensive, so it’s the better choice here. After you get Thor to 85, start working on Widow and Wolvie (if you have a lot of covers for a 3* that you can transition into soon, then just focus on OBW, if not then focus on both).