Pyros
<Silver Donator>
If you go Defense/Auramancy/Archery, you basically have nothing to do a good deal of the time other than autoattacks, but you're kinda setting it up that way. Those 3 are the classes that don't have any fillers and mostly long cooldowns. Archery generally goes with Shadowplay though which adds Quickshot as a filler and a few more cooldowns including poison arrow which is fairly short and Defense/Auramancy are more like support classes that would complement another main class, like say Battlerage for melee or Vitalism for heals.