Spell #131920 (possibly named "Mean Smelly Angry And Stabby") doesn't exist. It may have been removed from the game.
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Mean, Smelly, Angry, and Stabby - Live
Mean, Smelly, Angry, and Stabby - PTR
Mean, Smelly, Angry, and Stabby - PTR 2
Mean, Smelly, Angry, and Stabby - Beta