For what it's worth, this week's Prime Time stream on Thursday drops 15 of one random Tauron Strike resource every 30 minutes. It's still not much, but at least it could be some help.
I myself only managed to get one of them so far, and I kept getting advised to grab the staff for Vazarin first even though I've been maining with Zenurik active. At the very least, I do enjoy playing the Perita Rebellion mode and it's decent fun to blaze through; in my experience Sevagoth really shines there as a frame, considering how often enemies clump up basically by default for his shadow(s) to whip and nae-nae on. Even the comandeered Prime frames will get absolutely shredded with a quick (3-)2-1.