That Steel Coil

That steel coil weighs 50 tons, cannot be destroyed or erased, and can move on its own. There is currently no way to stop its movement (not even by rules). It is speculated to have self-awareness. Furthermore, the ropes used to bind and fix the steel coil cannot be destroyed. The mass of the steel coil cannot be offset or disappear. If it does not crush the opponent within five minutes, it will summon other steel coils with the same properties to replicate, turning one into two, two into four, four into eight, and so on (it disappears after 30 minutes, but its本体 has an infinite lifespan). Normally, it does not attack proactively, but if intense combat occurs nearby, the steel coil will attempt to attack those involved in the battle. Those considered participants will be permanently pursued by the steel coil. Once it starts moving, its speed will begin to increase, and its speed appears to have no upper limit. Its temperature is very high, approximately 300 to 1000 degrees Celsius.