Soul Separator Head

How to get

Monster	Lv	How	Quantity	Chance
Spirit of Andras, the Betrayer boss	69	drop	3–9	61.1%
Doom Blade Tanatos boss	72	drop	12–36	25.5%
Doom Blade Tanatos boss	72	drop	12–36	25.5%
Anakim's Nemesis Zakaron boss	70	drop	12–36	25.2%
Terod	82	spoil	1	12.2%
Beleth's Devotee	83	drop	1	4.72%
Chakram Beetle	78	spoil	1	4.7%
Dragon Steed Troop Captain #1	81	drop	1	3.55%
Dragon Steed Troop Magic Soldier	80	spoil	1	3.53%
Dark Omen Invader Elite Soldier	75	spoil	1	3.48%
Magma Golem	78	spoil	1	3.21%
Rotten Messenger	80	spoil	1	2.73%
Kechi's Captain	82	drop	1	2.44%
Remnant Diabolist	81	drop	1	2.32%
Ketra Orc Scout	78	spoil	1	1.53%
Dragon Steed Troop Magic Leader	81	drop	1	1.29%
Leader of Offering	78	drop	1	1.08%
Garden Guardian Tree	83	drop	1	1.02%
Kechi's Captain	82	drop	1	1.01%
Rodo Knight	82	spoil	1	0.8644%
Triol's High Priest	78	drop	1	0.8596%
Dragon Steed Troop Magician	81	drop	1	0.7827%
Divine Advocate	78	drop	1	0.7434%
Law Scholar of Conclusions	81	drop	1	0.7209%
Soul Exploiter	81	drop	1	0.7143%
Scarlet Stakato Noble	78	drop	1	0.6113%
Hasturan	78	drop	1	0.5563%
Varka Silenos Great Seer	78	drop	1	0.5506%
Hasturan	78	drop	1	0.5328%
Temple Guard	78	drop	1	0.5199%
Varka Silenos Medium	78	drop	1	0.512%
Varka's Head Magus	78	drop	1	0.4246%
Varka Silenos Warrior	78	drop	1	0.385%
Prophet's Guard	78	drop	1	0.3749%
Ketra Orc General	78	drop	1	0.3056%
Grazing Bandersnatch	78	drop	1	0.2467%
Remnant Wraith	81	drop	1	0.2361%
Chrysocolla	83	drop	1	0.2053%
Guardian of the Grail	78	drop	1	0.2023%
Pythia	83	drop	1	0.1829%
Darion's Enforcer	81	drop	1	0.1608%

Chances are from the server scripts, without the server rates.