Level 267 with 303 achievements completed. Still stuck at X, and have three skills missing. Though two of those I assume are from premium-only tiles. Probably poolbound and bloodbound. Don't know what the other skill is yet.
I haven't found bloodbound yet, myself. I'll let you know where it is when I do.
Try some Chapter Zero style mana farming trap lines.
Takes more skillpoints than it did in Chapter Zero, but at your level you probably have more than you need. Might be worth experimenting with white in there too if you have it.
I almost turned you down on this, but I'll give it a shot.
I find I get better results with barrage.
In traps, this is a no-brainer, but mana is generated per hit, and tower beams cause a massive number of hits at much lower damage.
What's your highest rarity on fragments?
Edit: Orange-Red-White traps are amazing. Really slow to start off, but once they reach grade 7, more than worth the investment. They work best in groups of 3 when backed up by 1 Blue-Red-White trap, to maximum hits on all of the mana traps. Once a mana trap reaches grade 12(I think?), it starts pulling in something like 200 mana per hit, and the mana pool skyrockets. On the level in which I first used them, I achieved a level 16 mana pool, made a grade 16 gem, and achieved a maximum mana pool of something like 5 million, at one point.
I just reached level 232, and I'm going to bed. Still haven't found Bloodbound, since I'm going back over the first few levels on Haunting difficulty to grab some talismans and some levels. Just snagged an 80 rarity fragment. It's crimson, and at upgrade level 8, it gives these bonuses:
+9% xp gained
+32% faster orblet rollback
+125 initial mana
+17% damage to swarmlings
+33% slower killchain counter cooldown
+17% damage to reavers
+18% damage to giants
+1 to component skill levels