Bought rank 1 of each a long time ago.
Madae audio triggers for them in case I missed them.
I melee alot with Lynx running and a Rogue poison up.
Spent an entire day nuking instead of dotting.
Not ONE of either
Only time I have seen a twincast is with an Enchanter in the group.
I am not talking about the healing twincast that definately works but the aa twincast.
If its working I have the worst luck with the RNG I have ever seen.