How good is c2r1 Xilonen for Itto?

Yup.
Observation: this is a c1r5 itto. Your experience may vary.
Do you have any characters you want me to test? I don't have all DPSes but i'm taking suggestions if they are interesting. I have a ton of built 4 star DPSes and tend to liek those better.
Words on xilonen with itto: it's not nearly as comfortable as other characters, because he doesn't get heals from xilonen, only gorou, and gorou heals are cope.
This is a "good" rotation: furina is in attack mode, everyone starts with high HP. If you want to use this party with itto, every other rotation is going to be a lot weaker.
You can swap gorou for bennet, but that's a big loss of DPS. damage falls to just over 100k per hit. that's still awesome but clearly not as much as ~120k. I mean... this way, he just barely edged My noelle by a fraction of a second (I also got 19 seconds on this boss with noelle today but i think it was more towards the end of the second tick than itto's run, not sure). she's way more comfortable to use and does basically the same dps with a better AOE.
poor itto. even when he wins, he loses. But if you main him... yeah xilonen is transformative even if she makes itto kinda itchy