From Lineage 2 Encyclopaedia

Properties

Aura Flash
Inflicts non-attribute damage on nearby enemies with 49 Power added to M. Atk. Consumes 2 Spirit Ore. Cancel target.
Class	Spellhowler
Type	active
Attribute	-
Recast time	4 s
Cast time	1 s
Cast range	0
Classes with same skill	Sorcerer, Spellsinger, Spellhowler, Archmage, Mystic Muse, Storm Screamer

Skill Upgrade

Lvl. to Learn	Skill Lvl.	Description	MP Consume	HP Consume	SP
58	1	Inflicts non-attribute damage on nearby enemies with 49 Power added to M. Atk. Consumes 2 Spirit Ore. Cancel target.	54	0	121
62	2	Inflicts non-attribute damage on nearby enemies with 53 Power added to M. Atk. Consumes 2 Spirit Ore. Cancel target.	58	0	200
66	3	Inflicts non-attribute damage on nearby enemies with 58 Power added to M. Atk. Consumes 3 Spirit Ore. Cancel target.	62	0	310
70	4	Inflicts non-attribute damage on nearby enemies with 61 Power added to M. Atk. Consumes 3 Spirit Ore. Cancel target.	65	0	711
74	5	Inflicts non-attribute damage on nearby enemies with 65 Power added to M. Atk. Consumes 4 Spirit Ore. Cancel target.	69	0	1000