Ri'tu EX3 no 5* gacha A4 in 37 turns - Octopath Traveler: COTC

I saw this clear about a day after I did mine, it uses the same Bargello tank strat but more optimized, better team and gears by Doughtato:    • Octopath Traveler: Ritu EX3 in 25T  

The strat is pretty simple: Bargello taunts and draws all single target attacks and the rest just hit people until they're dead.

Bargello's sidestep and Hammy can comfortably tank this fight because it's mostly single target physical attacks, you can't lose. Fiore EX can also do that but Bargello doubles down as a massive buffer for wind team with his passive and active buffs and a relatively good dps. If you don't have him you can always use Tressa but the clear will be considerably slower. Bargello/Hammy is the combo you want to have and the rest can be easily replaced with other units, ie Sophia can be replaced with Odette etc. It may or may not be slower.

The 2 attacks you need to look out for is the dancer's AOE attack but it doesn't hit very hard. Ri'tu can do 3 lightning random target but Bargello can comfortably tank that with some def buffs (here I have 30% passive p.def/e.def from Tatloch and Hammy's A4). If you can tank both, you will win.

As far as pets go there's just the dodge cat on Bargello that's important, and it's only in case you get unlucky and Ri'tu attacks too many times. The e.def down dog and e.atk bird are nice for more damage.

If you have good A4s you can considerably cut the number of turns for this clear, I just don't have any that are good. I should have put a wind accessory on Tatloch though.