I realize they don't want to add glyphs attached to brand new spells, which is why I specify "post 4.0". Possibly as a new talent down the road.
"Adding a secondary effect to Heroic Leap, like a Thunder Clap or letting you get out of roots might be a good role for a glyph. We don't like to glyph new high level abilities immediately because then players don't appreciate what the glyph does for them, since they have never used the ability unglyphed. It's something we could consider for a future patch."
-GC
http://blue.mmo-champion.com/t/26560...on-build-12942 (At the very bottom)
Glyph of Mind Spike
Prime/Major Glyph
Requires Level 81
While under the effects of Dark Archangel, your Mind Spike no longer extinguishes your damage-over-time spells. Increases the cooldown of Dark Archangel by X seconds.
Archangel
Instant
Dark Archangel (Dark Evangelism) - Instantly restores 5% of your total mana and increases the damage done by your Mind Flay, Mind Spike, Mind Blast and Shadow Word: Death 4% for each stack. Lasts for 18 sec. X sec cooldown.
Essentially, allow Mind Spike/Mind Blast combos to work it's way into our rotation on a 90 - 120 second cooldown. Could be fun.