Глас Эльрата
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I received it without any problems, both for myself and for another mage I bought it for. There's also a mage near the entrance to the dungeon who swaps skills; everything can be done easily through him.
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Before this mission, Zehira's skills are developed according to the scheme for obtaining Special Abilities. BEFORE the battle with Biara, change the skills to combat skills. Take attack, defense, mechanics, and luck, and leadership (there are actually two options here: leadership is needed when recruiting creatures from the Claw; if you're fighting with your own troops, it's better to take light magic).