Beastmaster + Earthshaker

Why this works

Thinking a long-range Roar is the perfect setup for an Earthshaker seems logical, but it often falls apart. The core issue is that Primal Roar knocks its target and surrounding enemies back. This push actively works against what Earthshaker wants to do. It can ruin the angle for a clean Fissure block and, more importantly, it separates the stunned hero from their team. Earthshaker thrives on finding clumped-up enemies for his Echo Slam, while Beastmaster's signature initiation creates space and isolation. They fundamentally want the enemy team positioned in opposite ways.

This conflict means their teamfights feel disjointed. Beastmaster might find a great pick-off, but the enemy team can often reposition or even save their ally because the follow-up from Earthshaker is so awkward. He is often left holding his ultimate, waiting for a multi-hero setup that Beastmaster's playstyle prevents. If Earthshaker finds his own big initiation, Primal Roar becomes a redundant, single-target stun on an already disabled group, which is a low-impact use of a major cooldown. The two heroes are constantly working at cross-purposes, making it hard to secure clean victories.