Faceless Void + Monkey King

Why this works

Teamfights often hinge on using both heroes' ultimates, but Chronosphere and Wukong's Command are fundamentally at odds. If Monkey King casts his ultimate first, Faceless Void will freeze all the soldiers with Chronosphere, completely shutting down Monkey King's damage output. The whole point of the Wukong's Command area is lost. On the other hand, if Void lands a good Chronosphere, Monkey King can’t effectively place his own ultimate inside it without being caught himself or having it do nothing. The two spells actively cancel each other out, making big fights incredibly awkward.

This core conflict forces the team to stagger its most powerful spells, making teamfights less decisive. Usually, one hero has to hold their ultimate, drastically reducing the team's overall impact. Both Faceless Void and Monkey King are also greedy heroes that require a lot of farm to be effective, which can strain the team's resources and map space. This means there are fewer opportunities for one to create space for the other. The enemy can often exploit this by forcing fights or picking off one hero, knowing that the team's major teamfight tools don't work together.