Cephalothorax: The Jack-o-Lantern Minosaur is literally a jack-o-lantern with limbs.
Hate Plague: A different type. The Jack-o-Lantern Minosaur tosses rainbow lollipops onto people that drains their hate, producing huge dark clouds from the accumulated rage that pours rain onto folks within the vicinity of the rain cloud. Those affected by the rain will start to fight each other out of absorbing the accumulated hate.
More Teeth than the Osmond Family: Close inspection reveals that the Jack-o-Lantern Minosaur has rows of teeth that look like it was decorated with a lot of toothpicks, which is a thing you could do with a real pumpkin.
Nice Job Fixing It, Villain: The Ryusoulgers figure out how to use the Jack-o-Lantern Minosaur's ability to exorciseGaisoulg.