He's a standard protagonist character who has projectiles, DPs and all the other tools you may need to achieve victory. He may also use Izanagi to perform JoJo-like combos, attacking the enemy as a team.

Special Moves
All or Nothing ((j)B+D) - A Shoryuken-like attack with a sword. It's much better than the actual Shoryuken, since it doesn't require directional inputs, but don't forget that you lose some health for the R-Action.
Swift Strike ((j)214A/B) - Narukami dives downward with a lightning stab. Similar to Ragna's Belial Edge, counts as an overhead.
Blitz (214C/D) - Narukami and Izanagi slide forward with a low lightning stab. This one can be compared to Ky's Stun Dipper.
Zio (236C/D) - A Stun Edge-like lightning projectile is quickly shot forward. B version stays right before Narukami, EX-version induces the Paralysis status (can't walk, run or jump).

Super Moves
Ziodyne (236236C/D) - A huge multi-hit laser is shot forward, almost completely covering the screen. Use it both as a combo ender and as a restraint tool.

Awakening Super
Cross Slash (214214C/D) - Narukami strikes the enemy with a lightning sword and performs a combo along with Izanagi. Looks so very totally cool.

Yu Narukami

I'll keep this short, since there's really not a whole lot to say that hasn't been done so already. Yu's Izanagi attacks feel sluggish at first, but Sakuraba was saying it's nothing much different than he was a few patches back. Personally, I dunno how to take that, cause I was punishing the crap out of his Izanagi whenever he went for a raw summoning. Probably just means you shouldn't do that, though I dunno how that's gonna affect his projectile war capability. I won with Aigis, though it's probably because I can play keepaway and was better at blocking than him. Not sure what else Izanagi is supposed to provide other than combo support. His little ground charge isn't safe, 5D isn't either just because of how long he stays out, and more.

Might be something, but Yu is capable of moving around more after Izanagi is summoned as opposed to other characters. Has to be close by in order to capitalize on it, so he'd be walking into Chie, Akihiko, or Mitsuru's range if he does.

His SRK blowback is strong, costs health and all that jazz. Nothing new to report there. You can rapid it for a combo.

A lot of his sword normals remind me of Jin in a way, with less range. Mashable A's at close range and can do some sneaky frametraps with it for big CH damage. Yu scores well with that. His J.B has a reverse hitbox too (around his ass, go figure P4 ladies) and more fun times to be had. Ziodyne is your typical shinkuu hadouken, though has some invincibility on start up. Pretty handy for a punishment tool, but not like Teddie's Nuke attack (which is...like Makoto's God's Hand punch essentially without the wall bounce.)

So yeahhh, wasn't seeing a whole lot of new stuff that was tricky. Yu players were solid, had their range down, and combos you'd expect from a MC of a doujin fighter. He has a neutral game overhead that's decently fast, so mixups are there. Expect to see him a lot in tournies, he's plenty good.