Bane + Earthshaker

Why this works

Securing a kill on a single target is the main idea here. Bane provides the setup with either Nightmare or Fiend's Grip, giving Earthshaker a guaranteed Fissure or Echo Slam initiation. This chain of stuns is more than enough to delete almost any hero caught out of position, making for very effective ganks. The downside is that you're using two heroes' primary lockdown spells on one person. While it’s reliable, it can feel like overkill, and the timing for abilities like Fissure with Nightmare requires some coordination to maximize their effect without wasting duration.

Early on, this duo excels at creating pressure by finding pickoffs. A successful gank from Bane and Earthshaker can open up the map and secure objectives. The game plan becomes predictable, though. Opponents will learn to stick together to prevent anyone from getting isolated and caught by Fiend's Grip. If the enemy team groups as five and has saves or ways to break channels, this combo loses its main strength. It often comes down to whether you can get ahead with those initial kills before the enemy can shut down your single-target strategy.