Battle Magic
From Heroes of Might and Magic: Olden Era Official Wiki
Battle Magic is a skill that lets the hero's Spell Power and Knowledge stats increase the power of their army.
Levels
Basic Battle Magic
Friendly creatures’ Attack and Defense increase by 15% of the hero’s Spell Power and Knowledge respectively.
Advanced Battle Magic
Friendly creatures’ Attack and Defense increase by 20% of the hero’s Spell Power and Knowledge respectively.
Aura of Destruction
Every time the hero uses a spell in a battle, their Attack increases by 1 until the end of that battle.
Aura of Protection
Every time the hero uses a spell in a battle, their Defense increases by 1 until the end of that battle.
Aura of Wizardry
Every time the hero uses a spell in a battle, their Spell Power increases by 1 until the end of that battle.
Expert Battle Magic
Friendly creatures’ Attack and Defense increase by 25% of the hero’s Spell Power and Knowledge respectively.
Battle Mage's Authority
Friendly creatures’ Attack increases by 15% of the hero’s Spell Power. This bonus is doubled if the hero knows “Sorcery”.
Mage Protector's Authority
Friendly creatures’ Defense increases by 15% of the hero’s Knowledge. This bonus is doubled if the hero knows “Resistance”.
Chances
| Hero Class | chance at level-up |
Every 4th level |
Every 5th level |
At level 20 |
|---|---|---|---|---|
| 2.13% | ||||
| 6.38% | ||||
| 2.17% | ||||
| 6.52% | ||||
| 2.13% | ||||
| 6.38% | ||||
| 2.13% | ||||
| 6.38% | ||||
| 4.26% | ||||
| 4.26% | ||||
| 2.08% | ||||
| 6.25% | ||||
Skill synergies
Knowing Battle Magic will give the following benefits to other subskills:
Chaos Reigns
The hero and friendly creatures deal 50% more Damage with Lucky Strikes. This bonus is doubled if the hero knows “Battle Magic.”
The hero and friendly creatures deal 50% more Damage with Lucky Strikes. This bonus is doubled if the hero knows “Battle Magic.”
Battle Focus
Generates +1 Focus Charge(s) at the beginning of each round, except the first. This bonus is doubled if the hero knows “Battle Magic.”
Generates +1 Focus Charge(s) at the beginning of each round, except the first. This bonus is doubled if the hero knows “Battle Magic.”
Artifact effects
Holy Sigil of Eridore —
Epic Relic
While worn, grants all unlearned Subskills of the following Skills: Logistics, Battle Magic, Wisdom.

