Nightmare Fuel / Digimon Fusion

• Episode 22, with Laylamon's plan for revenge against Mikey for interfering with her. She has her giant Mook Arkadimon toss Mikey into Digital Space, but not before letting him know that she plans to have the giant devour his friends. If it weren't for Wisemon, Mikey would been left adrift forever, with the knowledge that his friends would all be killed.
• How about Tactimon? This Digimon leads most of the Bagra Army's forces and fully embraces the We Have Reserves attitude. He'll do anything to achieve a perfect victory, even if he has to wipe out his own forces right along with his enemies. Dorulumon defected after getting fed up with it. Because of that, Tactimon's first order of business upon encountering Xros Heart is to order Dorulumon executed as a traitor, and he doesn't just have Dorulumon taken out and shot either. He orders his underlings to burn Dorulumon to death as slowly and agonizingly as possible and orders the same done to Taiki simply for the convenience of killing two of his enemies at once.
  • Gravimon is just as bad. He’s an utter sadist who happily breaks Christopher’s mind to make him serve him causing a domino effect that leds to Deckerdramon’s death. It gets better as Gravimon later decides to fuse his core with Mikey causing the latter extreme pain just to give Christopher a choice between destroy his core but kill Mikey or leave Mikey in pain. He’s also really hard to kill.