"Mm, it should serve our purposes.." Briefly Kaiba found himself considered whether this was the most humane way to go about this, or not. The monster was literally made of metal, so this chain shouldn't, in theory, cause it too much discomfort. Geeze, what was he saying. The beast was trying to tear into Indigo a few minutes ago and would have taken a go at him if it had been given half a chance.

"We could leave the rest of it buried, that way it would have an anchor point. Then we'd just need something else to fasten it to." Realizing that if it wasn't secured tightly it wouldn't do any of them any good. He stopped pulling on the chain.