They rip off Unlimited Blade Works as a special attack.
Everything is a rip off of everything nowadays...
...But I understand your reaction since I happened to react in a similar manner after seeing that Millia's new Instant Kill in GGXXrd is... a rip off of Piccolo Jr's Hellzone Grenade.
Anyway...back to topic.
New Disgaea set to be released on next year, on a system that I don't own, that costs 400 whooping € (486,16$) in my country and... still an unemployee... Things are looking bright.
It might be a long while until I get to play it (either that or I end up sacrificing a great part of my savings to get this... thing that is unwise...but tempting), it looks interesting but I'm not specially hyped with it...yet. Experience has taught me to tread very carefully with Disgaea games (Disgeaa 2 was quite meh of a game to me and I couldn't enjoy Disgaea 4 as much as I would have expected due to some characters ruining the experience with sheer annoyance... Yes Fuuka, I'm looking at you... you pony voiced spoiled brat).
I'll still be looking forward to see more of it though... As it will be a target of mine... eventually (I hope).
.P.S.: It's just me or this game's (meant to be) heroine looks like an "evil" Artina? Not that I'm complaining though ^^