Since the cap is in sight for my battle pet, I want to make sure I have the best possible weapon set, and am looking at for my next upgrade, but that's a lot of SP to spend. Anybody here use her? Is she worth the money? From the description, she looks great against opponents with a high steal rate. Is this true in practice?

My current set is

Yes, it is very much worth the investment! The only thing I would consider buying beforehand is a Reviver of the Lion to replace your Rainbow Vortex. I think you'll find it more useful than a blocker at your skill level.

Thanks for the rec; I hadn't even considered that since I've mostly been looking at the high-tiered weapons. Adding it to my set now!

No problem!

As for the stealing, I think the Ether is more advantageous because it generates a weapon every time you use it. Whereas with Natasha, it has only a 12.5% chance of generating 1-2 bullets every turn. I would rather use Blessing of Natural Armor Tear Crystal for steal protection because it prevents stealing at 100% when the blessing is active. Modding a weapon with three of those usually provides you with enough coverage. Another steal protection option is Ornamented Hook Swords, which also has a blessing that protects against stealing by 100% at a 25% activation rate. So it really depends on your own style and what you want, as they are all good choices really.

It's the highest damage output for fire (I'm not sure if there's a god weapon that does more).

I'm much lower tiered and I have all the high single icon weapons (OHS, Natasha, etc.) that are buyable.

ME, wrath of k, and sandreaver all do more fire damage, but sandreaver is essentially unobtainable. In terms of fire blockers, natasha is the best next to wrath of k, but who would pay 3+bil for that? (This nut did :p)

- Yeah for some reason I switched defence and offence haha. Can you tell I'm only a casual battler?

I use it for full fire block haha, but also as part of my main set (because I can't afford wrath of k ;) and it does decent damage for a weapon that's readily available.