I’ve always had a thing for villainous characters, so I think my top scenario would be fattening up the dark lord beyond saving. Maybe he’s got a gluttonous side, maybe he doesn’t get much exercise sitting at his throne all day and commanding his underlings, but no matter how it starts, he begins by putting on a bit of weight. He’d quickly notice, but ruling is tiring, so he needs the extra energy, right? And above all else, there’s something about getting bigger that just feels so good, so as someone who’s already doing evil to sate his own desires, he lets himself go. The hero is so trim and fit, while he’s spouting budding moobs, chunky thighs and a belly that can no longer be contained by a waistband. Eventually, he gets so big that he hears his throne creaking, but he can no longer stand or move. Not a problem! His minions are always there to feed him and his machinery can be repurposed into feeders. In the end I’d like to see him get so huge he’s the size of a room and when the hero finally arrives to fight him, the last thing he sees is this behemoth of a man feeding through industrial tubes before being crushed and suffocated by his fat.