Card Tips:Machine King Prototype
- This card can be searched by "Clockwork Night", "Gear Gigant X", "Infinitrack River Stormer", "Machina Metalcruncher", "Aussa the Earth Channeler", "Urgent Schedule", "Machina Armored Unit", "Psychic Arsenal", "Aussa the Earth Charmer, Immovable", "BOXer", "Frontline Observer", "Sphere of Chaos", "Serpentine Princess", "Battle Royal Mode - Joining", "Vampire Dragon", "Rescue Ferret", "Witch of the Black Forest", and other generic searchers.
- "Clockwork Night" and "DNA Surgery" can be used to take advantage of "Machine King Prototype's" effect by making all the monsters on the field to Machine-Types.
- This is a better alternative to "Machine King", as it does not require a tribute, a decent ATK for a three star monster (you can use it with "Level Limit - Area B" or "Gravity Bind"), and has essentially the same effect.
- Use "Blue Thunder T-45's" effect to Summon Thunder Option Tokens and increase the ATK of "Machine King Prototype".