One of my favorites was a multiplayer server I was on with friends, but the first swamp I found was positioned in such a way that the closest my freshly entering swamps self could do was park in a black forest and cross a sliver of plains to reach the swamp. Every iron trip was absolute chaos on that server. I'd drag greydwarves and trolls into the plains, which often engaged with whatever happened to be there already. I'd just keep running unless I saw a deathsquito closing in at which point id pull out my shield and then take off again after it bounces off. Then everything still after me from the plains would invade the swamps as I dove into a crypt. Repeat in reverse for the return trip.

It's surprising how much damage a lox can do when it wanders into the swamps though. Never tamed him, but I called him George and he was my unwitting little swamp buddy until he eventually disappeared.