If you have no Spells/Traps in your GY: You can discard this card; add 1 "Superheavy Samurai" monster from your Deck to your hand, except "Superheavy Samurai Bike". You can only use this effect of "Superheavy Samurai Bike" once per turn. Once per turn: You can target 1 Machine monster you control; increase its Level by 2.