Won my second attempt with 2 2 1 level111 Winter Soldier. Boosts: purple/blue, all AP, purple/blue match damage 50%
Got yellow medusa from LT…
Won on the 2nd try with my level 111 2/3/3 Bucky. Used +2 all, +2 B/P, and +100% match damage. Focused on denying black, secondarily on denying yellow. WS purple helps to steal AP and also to manipulate the board slightly for an extra match/cascade.
In the first match BP cascaded into yellow early, and then his strike tiles whittled me down quickly. I got relatively lucky with a board light on black on my second try so I was able to also deny yellow, and my red CDs dropped in where I could actually match them. I ended up killing him with traps and I had more than half my health left.
Reward was an Agent 
, which I can’t use. 
Moon Roach’s championed Bucky won with little difficulty. Got yet another Riri cover from the token. That’s 2 on the vine and now Phil’s done she’s next on the champion train.
Wolveroach’s level 131 2/3/1 just tried with no boosts, what’s the worst that could happen, ended up winning with ~200 health left. Got a Wasp black from the token, and she’s now 1/1/4.
First attempt with my L141, 4/2/3 Bucky did not end well at all.
I checked my vault, and with 275 tokens, a Bucky blue waiting for me, I decided to go for it.
206 pulls later, got my Bucky blue. (pulling both 4* no less; including a desperately needed purple SpiderGwen that brought her to 1/5/5),
Second attempt managed it with around 1K of health left.
Managed to get it, after quite a few tries. I had expected to need to get off multiple reds- in fact my successful attempt I only fired red once, and didn’t even get to match it. I used 50% damage boost for Blue/Purple and Red/Yellow, and +2 all AP. Got several match 5s and did most of my damage with the crit matches as a result.
Got to fire purple twice, ensuring ol’ T’Challa didn’t fire any abilities.
Try as I did my 2/2/1 LVL 111 Buckey just couldn’t get it done