Spellbook needed to learn 'Magician's Will'.

Required:
Warlord - Lv. 1
Gladiator - Lv. 1
Paladin - Lv. 1
Dark Avenger - Lv. 1
Treasure Hunter - Lv. 1
Hawkeye - Lv. 1
Temple Knight - Lv. 1
Swordsinger - Lv. 1
Silver Ranger - Lv. 1
Shillien Knight - Lv. 1
Bladedancer - Lv. 1
Abyss Walker - Lv. 1
Phantom Ranger - Lv. 1
Destroyer - Lv. 1
Tyrant - Lv. 1
Bounty Hunter - Lv. 1
Warsmith - Lv. 1
Sorcerer - Lv. 1
Necromancer - Lv. 1
Warlock - Lv. 1
Bishop - Lv. 1
Prophet - Lv. 1
Spellsinger - Lv. 1
Elemental Summoner - Lv. 1
Elven Elder - Lv. 1
Spellhowler - Lv. 1
Phantom Summoner - Lv. 1
Shillien Elder - Lv. 1
Overlord - Lv. 1
Warcryer - Lv. 1
Terramancer - Lv. 1