Envoy of the Wax State

So this monster can show up to stop an attack, but with 1800 defense, it won't survive very long. Its meager 800 ATK won't go over any monsters, especially with the effect. The post-Battle Phase effect permanently shuts down effects and makes the opponent's monsters unable to leave the field except by Tribute Summoning, which can be a problem. However, it will not stop them from attacking, and the effect only works on Attack-position monsters, so any in Defense can be switched to Attack, and their effects will still be activatable while in defense, meaning that unless you can shift all monsters on the opponent's side of the field to Attack, you may end up in trouble.

He might an envoy, but with the current meta, he just doesn't hold a candle when compared to other hand traps.