Find drop and spoil sources for Spellbook: Concentration in Lineage 2 High Five. Compare the recorded quantities and chances, then open a monster's page for its location and stats.
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Spellbook: Concentration
Spellbook needed to learn Concentration. Used by Human Wizards, Clerics, Elven Wizards, Elven Oracles, Dark Wizards, and Shillien Oracles.\nRequired level: 20