Ghostrick Invitation

You can only use this Skill's second effect once per turn. 1: You can only Normal or Special Summon "Ghostrick" monsters (excluding Special Summons from the Extra Deck). 2: Reveal either 1 "Ghostrick Witch", 1 Level 1 "Ghostrick" monster, or 1 "Ghostrick" Field Spell Card in your hand (a card with the same name only once per Duel), and play 1 "Ghostrick" monster from your Deck in face-down Defense Position. (Its battle position can be changed.) Then, you can send 1 "Ghostrick" Spell/Trap Card from your Deck to your Graveyard. During the End Phase of this turn, you can change any number of monsters you control to face-down Defense Position.