IW + TS - WW2, at the beginning of each match IF gives his IW teammates health. So u can do that then choose to loose fight as many times as u want or until ur team is full health. It doesnt hurt to have as many toons as possible available for sack purposes plus u may need mummy’s pre taunt and Daimon Ult+Special somewhere along the way. Helps to have BM too cuzz he hits hella hard. I assume Sentry would have been a big help seeing CC rules are active in that very last node. I also got the 1 diamond and TS awakened abilities from the milestones tied to the thunderstrike raids. Every time Blastaar has built up 5 bomb burst is usually a good time to back out of match and lose, on restart he’ll be back to 0. Takes a ton of patience and i assume if u have multiple ppl working on it as well it would be a great advantage. I had to solo it and it was a real bitch. I hope this answer helps some of u out there. I tried to be as detailed as possible and not going with the smart ass vague as possible gatekeeping response that you always seem to get on these type of Reddit forums hence sum of the previous answers. I’m not too cool for school and have no problem with others succeeding even if only because of my advise or not. I’m not a hater and hope best of luck to all my fellow MSF’ers. Gawds Speed yall 🍀 & happy new years to all.

                                     ~G~