Not your Clayton KC-1.
RD/KP06-JP031 アサルト・アルマート Assault Armato
Level 3 LIGHT Machine-Type Effect Monster
ATK 1200
DEF 600
[Requirement] If you control 3 face-up monsters (Machine-Type), you can activate by sending the top card of your Deck to the GY.
[Effect] Choose 1 face-up monster your opponent controls, it loses 300 ATK and DEF until the end of the turn.
TL Note/Update: “Armato” is apparently the Italian word for “armored”, and might be taken here from “carro armato” (tank). That said, knowing Rush Duel card names, there could be some other wordplay hiding in here that is not readily noticeable just yet.
