Vengeful Demon's Wail Challenge Quest Strategy Recommendation?

So I'm looking up the contents of the next 'event', and it seems to be just one long gauntlet of fights. So can I get some help on organizing a team to get through this challenge quest?

The list of Servants I have on my user page is up to date. I know people recommend raising up some of the Servants you get from the FP summon, and I swear I'll get around to it this year, I've just been too busy focusing on my SRs and above since they've got higher level caps and I'd rather use Ascension materials on them.