Puppet is the anti-Grim Reaper. Just listen to me for a second.

The Puppet gives life to things, which is pretty much just the opposite of what the Grim Reaper does. Furthermore, they also have opposing personalities, if you think about it. The Grim Reaper is often portrayed as quiet, unexpressive, and heavily devoted to their duty, while the Puppet is very loud, excitable, and easily distracted.

No, I do not know how I came to this conclusion.