Item #49353 (possibly named "Monster Polearm Epic D 02 Glow Red Low On Fire Onyxia Special") doesn't exist. It may have been removed from the game.
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Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - Live
Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - PTR
Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - PTR 2
Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - Beta
Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - Wrath of the Lich King
Monster - Polearm, Epic D 02 Glow Red Low, On Fire (Onyxia Special) - Cataclysm