Detainer confirmed to proc on Kinetic Sharpshooter. Large knockback + Slow.
Kinetic Diadem from Atelier in Kenabres kicks up damage on Energy Blasts to 3d6+6 vs Touch AC with +2 to hit from XBow at lvl3. Detainer has +2 base - not sure what this is, +2 enhancement, +2 Overflow on damage. Can add Deadly Aim but need Spell Pen more I think. Likewise Weapon Focus XBow adds +1 to hit. No difference in damage between Light and Heavy, STR does nothing even on Composite Bow so XBow better for wider crit range.
Ember's Vulnerability Curse cancels Resist if you want, but damage powers through most of it pretty fast.
Still playing around with the effects of Infusion Specialization, but the Blast icon doesn't show accurate Burn cost if you have enough in the Quiver to cover it.
This shot used up three Quiver pts at lvl 5 (despite Infusion Specialization) using Empower and Exploding. Usually Blast icon will show burn cost but it just shows zero whatever you do because Quiver.
The Detainer proc save is way up at the top there so I think that triggers first, which took him out of Exploding range to hit the Evoker. Lann also has Foxfire for zero burn that can reveal the Conjurer once it casts Invisibility, but Detainer applies Slow to keep him from running away like he usually does. Foxfire (Faerie Fire) removes Concealment miss chance, on for instance Zach the Lich.
Will take Fire Bonus Feat Dazzling to set up Shatter and (TTT) Shatter Mythic. Not available until lvl 9 though since 3/4 BAB class.
Reduce Person has no downside. Don't have Cat's Grace up yet here. Should be able to reliably apply Shatter to anything not Fear Immune.
Accepting Inciter Rage prevented Bloodseeker Cam from Summoning her Dire Wolves in this fight BTW.
(little 7hp lvl 1 Bismuth from Random loot mod - 5%/10% chance to get anything, usually junk. Somehow gave me Bismuth this run).