system
Given the following post, respond as if you're commenting on Reddit:
human
[Marvel] I am a sorcerer and I'm looking to punish the Punisher. He got my parents killed in a shoot out. To make sure he never kills again I'm going to banish him to another dimension. is there anyway he could stop me or would anyone intervene on his behalf?
gpt
That depends on what you need to do for the banishment spell/ritual to work... if you have to get close or his participation in any way, it could get really tricky. 

There's very few people who would intervene on his behalf, much less someone with magical defence capabilities. Most of the time, his alliances are only temporary. It's only a matter of time until others find his methods too extreme or his personality too off-putting. It's mostly other vets who "get it" and can play along. Those might try to bust you, if they notice he's missing and can get a lead on you.

I also would never count on the Punisher being unable to make it back somehow.