Load of BLM Ideas:

Combine leyline and the teleport to it into one button.
Allow teleport to leylines for a few seconds after the effect ended.
Grey out Ench if it is active so i can't fat finger it >_> Or make it give 5 secs to your Astral/Umbral Timer if clicked
Make Foul insta cast, or make foul restore a handful of MP.
Each foul reduces the CD of Triple Cast, AM and ley Lines by 5 seconds.
Foul adds a fire res debuff to the targets.
F4 Crits have a chance to reset Augmentation Cooldown.
Each hit with scathe adds 1 second to your Umbral/Astral Timer.