Masked Beast Des Gardius (Secret) (SBCB-EN107) [Speed Duel: Battle City Box]

Cannot be Normal Summoned/Set. Must first be Special Summoned (from your hand) by Tributing 2 monsters, including at least 1 "Grand Tiki Elder" or "Melchid the Four-Face Beast". If this card is sent from the field to your GY: Target 1 face-up monster your opponent controls; equip 1 "The Mask of Remnants" from your Deck to it.