Juggernaut + Slardar

Why this works

Relying on Juggernaut to secure kills with Blade Fury alone can be a gamble against heroes with escapes. Slardar completely removes that guesswork with Slithereen Crush, holding a target in place for the full spin. The real synergy, though, comes from Corrosive Haze. This armor reduction dramatically increases the impact of Juggernaut's physical damage from all sources. Every strike of Omnislash hits much harder, and even his basic attacks become a serious threat to high-armor targets who might otherwise shrug them off.

The plan for this duo is straightforward: Slardar finds an isolated hero, blinks in to stun and apply his debuff, and Juggernaut follows up with his ultimate for the deletion. This works well for picking off key targets before a fight begins. The advantage isn't overwhelming because the strategy is so predictable. Aware opponents will buy Ghost Scepters to nullify Omnislash or use Force Staffs to save their initiated ally. If that initial burst attempt fails, both Juggernaut and Slardar can find themselves overextended and vulnerable to being kited.