See monster block artifacts.
DARK CREEPER CREATURE 2
Source: Monster Core (https://2e.aonprd.com/)
Perception +8; darkvision
AC 18; Fort +8, Ref +12, Will +6
HP 30
Speed 30 feet
Melee [one-action] knife +12 (agile, finesse), Damage 1d4+6 piercing
Light Blindness — dazzled in bright light
Sudden Strike — deals 1d6 extra precision to off-guard foes