When this creature enters, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight. (If a permanent with a stun counter would become untapped, remove one from it instead.)
![Protocol Knight [March of the Machine]](https://inekosingles.com/wp-content/uploads/ineko-product-images/2f/2f4438ba04103bba088b9c0f58eb7f40c897d85fd4338d116010002e69cd8f82.webp)
When this creature enters, tap target creature an opponent controls. Put a stun counter on that creature if you control another Knight. (If a permanent with a stun counter would become untapped, remove one from it instead.)