Kunkka + Venomancer

Why this works

Picking these two heroes together creates a team that wants to fight in two completely different ways. Kunkka is all about burst damage, using his X Marks the Spot and Ghostship combo to instantly delete an enemy hero from the fight. Venomancer does the opposite, spreading slows and damage over time to wear the entire enemy team down. The core issue is that Venomancer's Poison Nova can prevent Kunkka from getting a clean kill, as it leaves targets alive with very low health instead of letting the combo finish them. A well-placed Venomous Gale can certainly help Kunkka land a Torrent, but this small benefit doesn't resolve their conflicting goals.

In practice, this means teamfights can feel inefficient. Kunkka might use his entire ultimate combo on a target, only for them to survive on a fraction of health and get one last spell off before the poison finally takes them. Venomancer wants long, drawn-out brawls where his poisons can tick away, while Kunkka's kit is designed for a quick, decisive pick-off to start a fight. They don't build on each other's strengths, and as a result, their combined impact often feels a little disconnected and weaker than what you might expect from their individual net worths.