From Lineage 2 Encyclopaedia

Properties

Aura Sink
Consumes the enemy's MP with 16 Power added to M. Atk. and additionally causes loss of 8 MP per second for 15 seconds.
Class	Warcryer
Type	active
Attribute	-
Recast time	3 s
Cast time	4 s
Cast range	600
Classes with same skill	Orc Shaman, Overlord, Warcryer, Dominator, Doomcryer

Skill Upgrade

Lvl. to Learn	Skill Lvl.	Description	MP Consume	HP Consume	SP
25	1	Consumes the enemy's MP with 16 Power added to M. Atk. and additionally causes loss of 8 MP per second for 15 seconds.	34	0	6
35	2	Consumes the enemy's MP with 22 Power added to M. Atk. and additionally causes loss of 10 MP per second for 15 seconds.	45	0	11
44	3	Consumes the enemy's MP with 29 Power added to M. Atk. and additionally causes loss of 13 MP per second for 15 seconds.	59	0	37
52	4	Consumes the enemy's MP with 36 Power added to M. Atk. and additionally causes loss of 16 MP per second for 15 seconds.	70	0	96
64	5	Consumes the enemy's MP with 46 Power added to M. Atk. and additionally causes loss of 20 MP per second for 15 seconds.	89	0	210
70	6	Consumes the enemy's MP with 51 Power added to M. Atk. and additionally causes loss of 22 MP per second for 15 seconds.	98	0	711