Glyph of concentration- next spell can not be interrupt...
Will you be still casting normally even if you get hit by a knock down skill?
Balance stance- can not be knock down
Will you still be interrupt by different source?
Need confirmation
Vermilion Okeanos
Freyas
If you are knocked down, any spell that you're casting/skill that you're using will be interrupted- even if you're using glyph of concentration or one of the 2 mesmer mantras that prevents interruption. Knockdowns are treated differently from interrupts, and a skill that prevents one won't prevent the other. Thus, Balanced Stance will prevent you from being knocked down, but any skill that interrupts your spell/action will still interrupt.
If you use both Glyph of Concentration and Balanced Stance, your spell won't be able to be "interrupted" by any means- though things like Blackout can be used to prevent you from being able to cast the spell(if your blacked out while casting a spell, the spell gets cancelled), and they can always try to kill you if they really don't want the spell to go off.
If you use both Glyph of Concentration and Balanced Stance, your spell won't be able to be "interrupted" by any means- though things like Blackout can be used to prevent you from being able to cast the spell(if your blacked out while casting a spell, the spell gets cancelled), and they can always try to kill you if they really don't want the spell to go off.