Nice build! Pillage definitely has some nice properties for Banshee, and you’re right, Silence helps deal with its big weakness in lacking CC. I think Vaz is also good for giving you breathing room to set up your CC and refresh your shield gate.
That said, I prefer Condemn as I usually go for longer runs, so I value eliminating as much stress and room for error as possible. The pacing of Condemn is very relaxed. Also nice to have a bit of CC for Demos and Acolytes, and I think fits the idea of Banshee supporting the team very well. On that, that’s why I like to run range so I can help cover teammates with Silence from further away.
For Energize, as long as you’re not using Decaying Key strats, Steadfast is a really nice substitute.
Rakta Dark Dagger, and single Daggers in general, are really nice on Banshee due to the synergy of Savage Silence and the Dagger forced finisher mechanic. That said, vs Infested, Banshee basically has free reign as Silence reduces them entirely to melee. As long as you stay mobile, she has a very easy time with them. Low range builds can also exploit Rapiers’ amazing finisher damage with the same Savage Silence technique.
I don’t recommend Overframe for anything other than sharing builds to people you know. The builds are usually out of date or badly un-optimised, and the community meta rankings don’t have proper time-weighting and thus are also out of date, in addition to corresponding mostly to the official usage stats.
If you want weapon builds, I think the youtuber Gamble is a much better resource. He’s not opinionated, he provides optimised builds, and he covers various levels of resources from newbie, midgame, and optimised.