الحمار الوحشي

[ Pendulum Effect ]
Once per turn, during your Main Phase, if this card was activated this turn: You can choose 1 unused Monster Zone or Spell & Trap Zone; while this card is in the Pendulum Zone, that chosen Zone cannot be used.
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[ Monster Effect ]
If this card is Normal or Special Summoned: You can choose 1 unused Monster Zone or Spell & Trap Zone; while this card is face-up in the Monster Zone, that Zone cannot be used.