Spiral leading to the Dragon Champion

You can only use this Skill's second and third effects once per Duel. 1: You cannot Normal or Special Summon (excluding Special Summons from the hand and Extra Deck) any monsters, except for Spellcaster and Warrior monsters with 2100 DEF, Level 5 Dragon monsters, and Aqua monsters with 2000 DEF. 2: During your Main Phase, play 1 "Artillery Catapult Turtle" from your hand or Deck to your field. 3: If your opponent controls more cards than you do, add 1 "Polymerization" from outside of your Deck to your hand, and play 1 "Dark Magician" from outside of your Deck to your field in face-down Defense Position. (Its battle position can be changed.)