Sorcery
From Heroes of Might and Magic: Olden Era Official Wiki
Sorcery is a skill that makes the hero's Spells deal more damage in battle.
Levels
Basic Sorcery
+20% Magic Damage dealt.
Advanced Sorcery
+30% Magic Damage dealt.
Summoning Sorcery
All summoned creatures in battle gain +25% health and deal +25% Damage.
Magic Arrow
Grants a new battle spell. It deals Magic Damage to a single target, has no cooldown, and costs no mana.
Raw Energy
+10% more Magic Damage dealt. This bonus is doubled if the hero knows “Offense”.
Expert Sorcery
+40% Magic Damage dealt.
Piercing Spells
Offensive spells ignore 25% of target’s magic resistance.
High Mage
All the spells belonging to Magic Schools the hero has learned gain 1 level(s).
Sticky Magic
Effects applied by the hero last +2 round(s). This bonus is doubled if the hero knows “Wisdom”.
Skill Synergies
Knowing Sorcery will give the following benefits to other subskills:
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.”
Friendly creatures’ Attack increases by 15% of the hero’s Spell Power. This bonus is doubled if the hero knows “Sorcery.”
Rhythmic Cadence
+40% maximum mana. This bonus is doubled if the hero knows “Sorcery.”
+40% maximum mana. This bonus is doubled if the hero knows “Sorcery.”
Artifact Effects
Holy Sigil of The Seven Magi — 
Epic Relic
While worn, grants all unlearned Subskills of the following Skills: Sorcery, Nightshade Magic, Resistance.Epic RelicMight Skills
Offense
Defense
Leadership
Luck
Resistance
Tactics
Battlecraft
Siegecraft
Recruitment
Combat(Might Exclusive)Magic Skills
BattleMagic
Sorcery
SummonAvatar
Wisdom
DaylightMagic
NightshadeMagic
ArcaneMagic
PrimalMagic
Thaumaturgy(Magic Exclusive)General Skills
Faction Skills
