Light Magic

From the official site: The light magic is mainly aimed at protecting or supporting the hero’s own troops. Few spells in this school are aimed at dealing damages or causing destruction, with the notable exception of the Word of Light, which is the most powerful of them and will deal severe damages to all evil-oriented creatures (meaning belonging to the Necropolis, Dungeon or Inferno) factions.

Amongst light magic spells you will find the Teleportation spell that allows your hero to instantly move a single creature anywhere on the battlefield. This spell is very useful to armies that include slow but powerful creatures in their ranks, such as Treants for instance. It is also a spell that will come in handy against shooters, as bringing one creature in contact with an archer for instance will oblige him to switch to melee combat, where he is less efficient.

Divine Strength

• Causes the selected friendly unit to inflict more damage in combat. Spellpower
  determines the duration of eff ect.

Cost: 4

Haste

• Causes the selected friendly unit to act more frequently in combat.

Cost: 4

Cleansing

• Dispels positive magic effects from enemy creatures and negative effects
  from friendly creatures. Checks agains caster level to dispel effects, so low level
  caster would be unlikely to dispel magic cast by high level mage.

Cost: 5

Endurance

• Increases the selected friendly unit’s defense strength. Spellpower determines
  the duration of effect.

Cost: 6

Righteous Might

• Affected creature is filled with rage and a lust for blood, it gains bonus to attack.

Cost: 6

Deflect Missile

• Makes the selected friendly unit receive less damage from ranged attacks.

Cost: 6

Magical Immunity

• Clears both positive and negative magic effects from the target stack and makes
  it immune to further magic spell effects. Can only be cast on friendly stack.

Cost: 7

Teleportation

• Teleports targeted friendly creature to another location on a battlefield.

Cost: 6

Resurrection

• Resurrects creatures in target friendly stack.

Cost: 9

Word of Light

• Deals holy damage to all the undead and infernal creatures on a battlefield.

Cost: 11