As for me, the build grants considerable DPS with the Shock Ray, while lvl 4 Plasma Shield talent adds some safety to a fragile templar.

The same considaration on lvl 13 Shadow Walk: escaping from the certain death is valuable. Though, if you feel like dominating opponents or safe behind your teammates - go for Feedback: protoss love them and it infuses additional damage as well as CC.

I preffer Archon above the Black Hole. First, for the grand splash and damage, second for its shield plus Plasma Shield talent effect. And the Black Hole is so slow that oppontn can walk off it, which makes it hard to damage or stun/CC.

Khala's Gift looks promising in teamplay, but Twilight Archon I like better )

My first build, so no info further, GL HF!