Monster Mask – Orpheon the Tactician
1 – Adds 129 Weapon and Spell Damage
2 – While in combat, casting an ability that leaves an effect on the ground summons a tentacle at the target’s location. After 2 seconds, the tentacle swings wildly in a 5 meter radius, dealing Physical Damage and stunning up to 6 enemies for 3 seconds. Enemies immune to stun take significantly more Physical Damage instead. This effect can occur every 8 seconds and scales off the higher of your Weapon or Spell Damage.

As per the title, Arcanist finally gets a thematic set, but the issue is how many, if any, actual class skills/morphs, aside from ultimates, proc the set. Specifically, placeable Aoe's.

Does anyone know?

Thanks.