Monsters

Timekeepers (custom)

Guardians unaffected by the loop. They remember past intruders and adapt.
Create unique creatures with abilities related to time manipulation. These “Timekeepers” guard crucial areas.
Outside the Loop: A few foes exist beyond time’s grasp. These “Timekeepers” guard critical areas. They remain unaffected by loop changes.
Unyielding Purpose: Timekeepers fight relentlessly, driven by their original purpose. Their attacks are precise and unswerving.
 

Goblins and Kobolds

These creatures have already overrun the citadel after the eruption of Mount Oberhide.
Goblin Boss and Kobold Inventor can add to their packs..

Skeletons

Echoes of fallen warriors who once defended the citadel. They rise again during each loop..
Also take a look at Minotaur Skeletons, Warhorse Skeletons, etc.

Hobgoblins

Former cultists or guards who still patrol the halls. Their disciplined tactics make them formidable foes..
Hobgoblin Warlords will also work well.

Blights

Manifestations of the Whispering Woods’ corrupted magic. They haunt the citadel.
Twig Blights and Needle Blights create eerie encounters.