Brief Contest of Champions update

I don't intend to make updates on this a regular occurrence, but here and there, I'm interesting in logging my progress.  I still don't have any 4-star champions, but I do have a lot of 3-stars now; more in fact than I do 2-stars.  I got rid of a couple of 2-stars that I had that were duplicated by 3-stars, and then—since I wasn't doing anything with 2-stars except fighting in 3x3 match-ups to earn specific 3-star heroes, I decided to go back to having a number divisible by 3, so I could make teams.  I have 12 2-star heroes, then—4 teams—and even when I get duplicates, at this point, I think I'm going to keep what I have.  This will just be my 3x3 roster that will remain unchanged.  I've been trying to gradually level and rank these guys up, though.  Five of them are now rank 3 (which allows them to use the super move) and I'd like to eventually get all of them maxed out.  But that's a slow process, and it takes away ISO that I could be using to bulk up my roster of 3-star heroes (and eventually 4-star, I hope.)  And because of that, I've decided to slow down on my Story Quests (I'm in the 2nd Act, and I'll keep at it, but then I'll stop until I've accomplished some other goals.)

Actually, I'm spending quite a bit more time in event quests, to earn catalyst.  This is, however, really boring, because it's the same quest over and over again, and although it does (slowly) give out catalyst, it's not great at giving out anything else.  It's really long past time that they retire the Groot quest and replace it with a new one.  I don't know how long its been since I finished the Groot quest, but it sure feels like forever ago.  And I also desperately need the catalyst.  But until I get some, I can't even do the medium catalyst quests very well; the difficult track is full of 4-star heroes to defeat that are in the 1,100-1,200 or so rating.  I either have to burn through a bunch of heal and revive potions to even do those, or I have to simply do the easy track and then wait until I've gathered enough shards to complete catalysts.  I really want my 3-star characters to all be up in the 3rd rank where they can get into the 1,000+ ratings themselves before I start tackling these.  I've got several heroes that are just barely in the 3rd rank, and are in the upper hundreds for rankings, but I need a lot more ISO get get them at the top of the rank and ready to get their final ranks.

So, that's where I'm at.  I feel like I need to "farm" ISO and catalysts so I can get my champions good enough to really move on in the story mode—as shallow and stupid as the actual story is—and the farming is getting tedious.  Does this mean that I won't be playing the game as much?  Maybe.  I've already slowed down from my furious investment into it over the holidays, but a lot of that is simply that I don't have the time that I had during the holidays too.  I'd love to get a different event quest up; I joined when the Jessica Jones one was on, but it finished before I did, and it's been Groot ever since.  I finished Groot weeks ago; I could have turned around and done it again at a higher difficulty level (and in fact, I probably would have if I'd known it was going to stick around so long) but now I'm mostly just interested in seeing what's coming in its place.  I'm also enjoying the quick 3-day (or so) challenges where you can win a 3-star hero in the Versus mode 3x3 teams.  I've done a few of those now, and I think it's a great way to bulk up my roster and earn units, premium crystal shards, and gold.  It seems like there's a new one over the weekends, and then it repeats again during the week.  I'll keep a weather eye on what's happening there.  Although without quests, I end up just getting more heroes that I can't afford to level or rank up, which starts to get old.  I'm feeling a real shortage of ISO.

Anyway, here's my current list:
2-star champions

• Cosmic silver Iron Man: 398
• Iron Fist: 392
• Wolverine: 373
• Star-Lord: 370
• Punisher: 366
• Regular Iron Man: 354
• Deadpool: 316
• Juggernaut Colossus: 313
• Rhino: 313
• Yellowjacket: 312
• Ronan: 310
• Drax: 309

3-star champions:

• Magneto: 883
• Thor girl: 828
• Hulkbuster: 762
• Ms Marvel: 750
• Spiderman: 731
• Winter Soldier: 690
• Black Panther: 664
• Daredevil (Netflix version): 638
• War Machine: 586
• Juggernaut: 576
• Dr. Strange 575
• Groot: 548
• Rocket Raccoon: 545
• Spiderman Miles Morales: 522