Just thought i'd list a few here since I've already made tickets on the beta way back at the start and they're somehow still in the game.
1) Shimmer & Non-Shimmer Displacement interrupts Arcane Missiles channel.
2) Shimmer & Non-Shimmer Displacement interrupts Evocation channel.
3) While channelling Evocation you can proc Time Anomaly Evocation (750% mana regen * 750% mana regen), you basically go from 0% mana to 100% mana in ~0.5 seconds.
4) If you already have Arcane Familiar out and you buff Arcane Familiar again it takes away ~34% of your mana.
6) Our rotation is almost entirely Arcane Blast - must be a bug, it couldn't be poor design.
7) Using shimmer while casting a spell allows you to move a while casting that spell for a very short period of time post-Shimmer.
Anybody else found anything?