Clockwork Knight



Continuous Spell Card

''After activation, all face-up monsters on your opponent's field become Machine-Type and their ATK is reduced by 500. While this card is face-up on the field increase the ATK of "Robotic Knight", "Machine King" and "Perfect Machine King" by 500.''

Rulings

 * The monsters changed to machines by this effect only apply to the monsters on the field on the activation of this effect.