Corathus Creep

Killing Things

Clockwork Scuttler:

Worse: Expedition 328
Better: Creep Reapers

Creep Reaper:

Worse: Creep Reapers
Better: Expedition 328, Sporali Collective, Deep Sporali

Mindspore Thrall:

Worse: Sporali Collective
Better: Creep Reapers

Scuttlebucket (named NPC):

Worse: Expedition 328
Better: Creep Reapers

Sporali (Defender, Harvester, Replenisher, Sower, Sporeweaver):

Worse: Sporali Collective
Better: Creep Reapers

Vernon (named NPC):

Worse: Creep Reapers
Better: Expedition 328, Sporali Collective, Deep Sporali

Quests

Cartographer Slipgear - Explore the Depths task:

Worse: Creep Reapers
Better: Expedition 328