PTR Currencies
Currency #615 (possibly named "死亡之翼的堕落精华") doesn't exist. It may have been removed from the game.
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Essence of Corrupted Deathwing - Live
Essence of Corrupted Deathwing - PTR
Essence of Corrupted Deathwing - PTR 2
Essence of Corrupted Deathwing - Beta
Essence of Corrupted Deathwing - Cataclysm
Essence of Corrupted Deathwing - LiveEssence of Corrupted Deathwing - PTREssence of Corrupted Deathwing - PTR 2Essence of Corrupted Deathwing - BetaEssence of Corrupted Deathwing - Cataclysm