Subject: I think the first one posted before I finished, sorry...
Author:
Posted on: 2015-08-07 18:16:00 UTC
Honestly, I am NOT the person you want to ask about this. I'm just in it for the story (and all the pretty guys and ladies), not the more mechanical side of things. All I can tell you is that her stat distribution means she'd be hard to use in Fate/Extra, but that's not really relevant to anything. Ahem. That said, my response is going to be from a storytelling standpoint, not a mechanical one.
Two A-Rank Noble Phantasms seem overpowered a bit, but then again, most Servants are. I really like the effect of the second one, though, I think it would make for a good, dramatic fight. The high collateral damage means that her Master would have to be fairly cold in order to do it. I can't imagine Kotomine hesitating to activate it... but even Kiritsugu might. The first one ties in well with Own's poetry and I'm going to sound incredibly uncultured saying this... but I think it might run into issues because of its thematic similarites when you consider both the plot of UBW and blackened Servants. I know the poem comes well before, but in context, it feels like a bit of a knock-off. On the other hand, if you spin the themes right, it could be very strong.
On a mechanical note, I do think the first one is probably too strong, because there's no time limit on the copies. So a clever Master could basically clone all the other Servants. In the interest of balance, I'd either make the clones only last for a given period of time, or have their stats be ranked down a level from the original. It would still be extremely powerful, but there'd be some limits. The other thing I would suggest is adding in some kind of drawback. Maybe the copies represent a major mana drain for Owen, or maybe they're not necessarily loyal to her, either.
Also, I'm not a huge fan of extraneous genderbends in the series itself. I think it works for Saber, but not every historical figure needs to have actually been a cute girl. More focus on actual historical women would be preferential, in my opinion. That said, I can hardly fault you for following canon.
If you want someone to do a more in-detail analysis, I'd suggest trying Beast's Lair. They have a lot of members who have much more expertise on this kind of thing. I'm definitely more of a casual fan.