NPC #46297 (possibly named "Abyssal Seahorse Action Trigger Test Spells") doesn't exist. It may have been removed from the game.
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Abyssal Seahorse, Action Trigger Test, Spells - Live
Abyssal Seahorse, Action Trigger Test, Spells - PTR
Abyssal Seahorse, Action Trigger Test, Spells - PTR 2
Abyssal Seahorse, Action Trigger Test, Spells - Beta
Abyssal Seahorse, Action Trigger Test, Spells - Cataclysm