Push for Uncollected

Brief recap:
January - Started playing MCOC
February - Finished Act 4
March - Tried Act 5 until 5.1.5
April - Quitted the Game
July - Started the game again and completed 5.1.6 to 5.2.5
Now I’m thinking if I should push through 5.2.6 before the compensation sets in as I heard that it will be progression based and I won’t highly likely need the conqueror rewards. I finished all the paths with 5* shards in the Canadian difficulty and breezed through masochism and bane but I still am afraid of trying the Collector without enough units. Who should I bring in case I take a leap of faith?
I’m thinking Thing, Warlock, Domino, Starky, and BWCV. Any suggestions or things I should beware of? I’m watching Seatin’s and KatyCandy’s guide.

January - Started playing MCOC
February - Finished Act 4
March - Tried Act 5 until 5.1.5
April - Quitted the Game
July - Started the game again and completed 5.1.6 to 5.2.5
Now I’m thinking if I should push through 5.2.6 before the compensation sets in as I heard that it will be progression based and I won’t highly likely need the conqueror rewards. I finished all the paths with 5* shards in the Canadian difficulty and breezed through masochism and bane but I still am afraid of trying the Collector without enough units. Who should I bring in case I take a leap of faith?
I’m thinking Thing, Warlock, Domino, Starky, and BWCV. Any suggestions or things I should beware of? I’m watching Seatin’s and KatyCandy’s guide.

4
Comments
Do you suggest that I stack poise charges or is The Collector's aggressiveness too much to handle?
Sure! I will!
I'm undecided if I should go team revive or solo revive Starky to the end.
Is going for 'solo revive Starky until the end' really more economical than 'team revive until the end'?
I'll try to take The Collector on the second day of the next arena after I snug a few more units. 頑張ろう (Ganbarou!)
So, now where’s the compensation? Lol.