Mage Bane , Warrior Bane , Mass Mage Bane , Mass Warrior Bane , Cancellation have too low hittime, you got canceled 100 % in 1 second ? lol.
Suggestion : make hittime longer , and bigger re-use ( hittime=15 seconds for example ) and reuse delay for idk, many zeroes there.
Also Curse Abyss , Anchor , Shield slam , bufftime=120 seconds to 30 seconds would be better.
Increase augment skills (Stone boulder , shadow flare , etc ) delay between hits , to 3 seconds or something, cuz summoners pwn u in 1 second.
Thanks and good luck fixing these things !