Kozmo Goodwitch (Gold Secret Rare)

During either player's turn: You can banish this card, Special Summon 1 Level 5 or higher "Kozmo" monster from your hand. You can only use this effect of "Kozmo Goodwitch" once per turn. Once per turn: You can pay 500 LP, then target 1 face-up monster your opponent controls, change it to face-down Defense Position.