Complex sentence: He encountered the being Eternity through his meditions who gave him the Amulet of Agamotto, a powerful mystical artifact and in Babylonia he defeated a griffin guarding the Book of the Vishanti, taken the tome of mystical knowledge with him.
Split into simpler sentences: He encountered the being Eternity through his meditations who gave him the Amulet of Agamotto, a powerful mystical artifact. In Babylonia he defeated a griffin guarding the Book of the Vishanti, taking the tome of mystical knowledge with him.