As a Tager main, I would say Ragna's j.C buff helps him out a lot. I noticed that your write-up doesn't mention j.C very much; it's a good option for getting in on Tager because, other than a yomi collider, Tager's anti-airs aren't reliable for stuffing a properly spaced j.C. And you can end pressure with a 3C/6C > high jump away if you don't land a hit.