Bristleback + Enchantress

Why this works

Keeping a frontline Bristleback alive often means saving him from a chain-stun burst. Enchantress's Nature's Attendants provides healing over time, which can struggle to keep up with that kind of focused damage. Offensively, their plans also conflict. Bristleback needs to be deep in the fight to stack Quills and draw fire, while Enchantress wants to stay far back to maximize the damage from Impetus. This positioning difference means they often end up fighting on separate parts of the screen, unable to directly support each other's aggression. She can't follow him in, and he provides little lockdown to help her kite enemies.

This lane can apply pressure, but without a reliable stun, turning that pressure into kills is difficult. Later, Bristleback creates chaos and space by running at the enemy team, but he doesn't offer the hard control or instant protection that a fragile hero like Enchantress needs to survive. If she gets jumped, he can't do much to peel for her. They both have similar timings and want to fight, but their kits don't really amplify one another. They end up as two heroes fighting near each other, rather than a cohesive unit that covers its own weaknesses.