Battlemage grants Added Spell Damage equal to the Damage of your Main Hand Weapon. This provides a lot of new hybrid spellcaster-melee build possibilities.
Sources: Instruments of Virtue(Notable ascendancy passive skill from Inquisitor class), Martyr of Innocence(unique staff, requries level 52), and Disintegrator(unique staff, requires level 64). Note that the effect of Battlemage does not stack.
While building Battlemage skill, always remember its tag: Spell Damage.
Let's choose Disintegrator as the main hand weapon. It grants Battlemage and also has high physical damage.
Vaal Blade Vortex tag: Vaal, Spell, AoE, Duration, Physical. Its spell and physical damage tags are the best tags for Battlemage.
|Vaal Blade Vortex Supports||Tag||Why choose it|
|Intensify Support||AoE, Spell, Support||Supports spell skills that you cast yourself.|
|Hypothermia Support||Cold, Support||Supports any skill that deals damage.|
|Controlled Destruction Support||Spell, Support||Supports attack skills, or spell skills that deal damage.|
|Cold Penetration Support||Cold, Support||Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.|
|Energy Leech Support||Support||Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.|
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|Name||Instruments of Virtue|
|Category||Notable ascendancy passive skill|
|Distance from start||2|
(Gain Added Spell Damage equal to the Damage of your Main Hand Weapon)
|Martyr of Innocence||staff||52||