Maintenance for the week of April 22:
• PC/Mac: NA and EU megaservers for patch maintenance – April 22, 4:00AM EDT (08:00 UTC) - 9:00AM EDT (13:00 UTC)
• Xbox: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
• PlayStation®: NA and EU megaservers for patch maintenance – April 24, 6:00AM EDT (10:00 UTC) - 12:00PM EDT (16:00 UTC)
Elemental Catalyst and Necromancer Pets
Necromancer pets (and perhaps all pets) do not actually proc the Elemental Catalyst de-buffs. This includes the Arcanist as well as Blastbones.
I would imagine that this is because they are considered their own entities doing their own damage but that is not the behavior that a player would expect from the set.