Juggernaut + Shadow Demon

Why this works

Setting up a kill with Disruption seems simple, but it creates huge problems for Juggernaut. When an enemy hero emerges from the banishment, they bring two illusions with them. If Juggernaut tries to use Omnislash, the bounces will almost certainly be wasted on those weak illusions instead of hitting the real target, gutting his primary burst damage. Even with Blade Fury, the illusions can body block and cause confusion, wasting precious seconds of magic immunity while the real hero repositions. Shadow Demon’s core setup spell directly interferes with his carry's most important abilities.

This fundamental conflict means they rarely have a clean plan for a fight. Juggernaut is forced to either hold his ultimate until after the Disruption illusions are dead, giving the enemy team a window to react, or risk a completely wasted cooldown. Shadow Demon often ends up using Disruption defensively on Juggernaut to save him, which is useful but highlights their lack of offensive chemistry. Instead of creating a kill, their abilities introduce a layer of chaos that benefits the opponent, forcing the two to play separate games within the same teamfight.