Optional boss. For the curious, my party was at level 12. I usually attempt to avoid generic mook encounters.
The fight is pretty RNG reliant - King Carnivore has 3 possible moves, which are attacking, happy gas and doing nothing. If he picks attacking as his first action it kills whoever he targets, so I just reset when that happens. Happy gas is the best start since you can immediately pick up the damage resist when Kel annoys stuff.
You basically spend the whole fight building up for the release energy, using annoy and mock to try and fend off damage while building energy, while the gas should automatically get you up to ecstatic. I start with team spirit to ensure Omori can get up to manic for the release energy. From there all you need to do is finish off what scraps of HP are left.
![](https://i.ytimg.com/vi/8ybZjq023tA/maxresdefault.jpg)