Fists of the Gadgets

Cannot be Normal Summoned/Set. Must be Special Summoned (from your hand) by sending 2 "Gadget" Monster Cards from your hand and/or face-up field to the GY. Cannot be destroyed by battle or card effects while you control a "Gadget" monster or a "Gadget" Monster Card equipped to a monster. Once per turn: You can target 1 other card on the field; destroy it.

Boot-Up Admiral - Destroyer Dynamo

You can target up to 2 Machine "Gadget" monsters you control or in your GY with different names; Special Summon this card from your hand, then equip those targets to this card (regardless of their Type). You can only use this effect of "Boot-Up Corporal - Command Dynamo" once per turn. Gains 1000 ATK for each monster equipped to this card by this effect.

Boot-Up Corporal - Command Dynamo

When this card is activated: You can target any number of "Gadget" Monster Cards you control that are equipped to a monster; Special Summon them. You can discard 1 card; add 1 "Boot-Up Admiral - Destroyer Dynamo" from your Deck to your hand. You can only use this effect of "Boot-Up Order - Gear Charge" once per turn. You can only activate 1 "Boot-Up Order - Gear Charge" per turn.

Boot-Up Order - Gear Charge

When either player's monster declares an attack and all monsters you control are face-up Machine monsters (min. 1): Destroy Attack Position monsters your opponent controls, up to the number of Machine monsters you control.