[Qaedain]

ENCOUNTER_DESCRIPTION SROHusamAncientNightfall
MONSTER_1_NAME a_desert_madman
MONSTER_1_NIGHT_NAME an_ancient_cyclops
MONSTER_1_PERCENT 10

MONSTER_2_NAME a_sand_giant
MONSTER_2_NIGHT_NAME a_mummy
MONSTER_2_PERCENT 20

MONSTER_3_NAME a_sand_giant
MONSTER_3_PERCENT 10

MONSTER_4_NAME a_dervish_cutthroat
MONSTER_4_PERCENT 30

MONSTER_5_NAME a_desert_madman
MONSTER_5_PERCENT 30

Translated
The Ancient Cyclops has five placeholders:
A Desert Madman (30% spawn chance)
A Dervish Cutthroat (30% spawn chance)
A Mummy (20% spawn chance)
A Sand Giant (10% spawn chance)
A Desert Madman (10%)
-------------
TOTAL: 100%

The 10% "A Desert Madman" can also be the Ancient Cyclops, and he only spawns at night: 9 PM - 7 AM game time.