New attack type - How i can make this?

[Harertz]

i can add new attack types?
we have magic, spell, siege, normal, hero, chaos, piercing
but i want add one more

 

[Lt_Hawkeye]

You can try utilizing a damage engine to "add" a new damage type.

Damage Engine 3.8.0.0 post #148 by shadowvzs will show you how to do it.

However, there won't be any icon image or information for the damage type, which is something you will most likely to make yourself as an passive ability somewhere.