Good PrCs for a TWF Ranger?

[Stephen_E]

Keep the level in Druid!

It gives her access to Wands of the Druid spell Flame Blade.
Get Empowered, Energy Substituted Flameblade Wands, and activate them while using a Lesser Metamagic Wand - Energy Admixture.
This will give her a scimatar of flame + 1 other energy (I'd suggest Acid, but Cold and Electricity are also legal) that does (1d8+1/2CL of wand maker)*1.5 Fire and (1d8+1/2CL of wand maker)*1.5 Acid (or other choice) that requires a touch attack to hit.

The Rod will cost 35,000gp. The Wand 11,250 if CL5 (minimum).

When you add this to 1+ levels of Dervish it is really nasty.
Improved Crit also becomes a feat of choice.

Stephen