I personally prefur Demon over Sage for Technician (Gunner).
This preference comes cuz i feel like the Gunner is more like a DB & it is more aoe/cc focussed.
Some might think Sage would b better due to the chi, but be realistic, 25% chance to get 20 chi isn't all that great.
Demon gives u 20% amp on trap, more crit (100% crit with spark) less channel/cast time & 1sec longer freeze on trap.
Once u reach the point of glyphs the difference in chi gaining even gets thinner... u can choose to get expel & flow a blue glyph witch, @first
look, seems great... I would go for Argent tho, it is kinda wierdly explained when u read the skill but basiclly i comes down to the cd being lowered or adding some damage, in addition ( & this is the sweet part) u get 2 or even 3 uses of that skill.
In short u use the skill 2x in a row, the cd starts running asa u use it 1st time.
So most skills are great with argent glyph, only for pvp i'd go for Red glyph on Affliction→ <22% hp on a player ?→OS..
4example Barb 100k hp→21.500 hp →Affliction red glyph lv5→RIP.
This red glyph u could also use on Neon Landing for a bigger splash of knocking down ppl/mobs.
Flow lowers the phys res 50% & Tide of fire lowers fire res 60% in primal version, both are aoe so good to support squads from way back 30m away.
Finally to diss out nice damage u could use a glyph to add damage to Murderous Indulgence, but again here i would go for Argent, 2x used in a row.
Hope this lil info helps ppl understand & like this new class a bit more, if u disagree or want to add stuff feel free.