Set

When you Set a Monster Card, you place it in a Monster Card Zone, Horizontal, and Face-down. if the monster is Level 5 or 6, you Tribute another monster first, then Set the Level 5 or 6 Monster Card, without having to show your opponent the card you set. If the card has more levels (7, 8, or Higher), the same procedure applies, but you Tribute 2 Monster Cards from your side of the field first