Alchemist + Juggernaut

Why this works

Drafting these two cores together is a clear bet on a specific power spike. The plan revolves around Alchemist accelerating his farm to deliver an early Aghanim's Scepter to Juggernaut. Receiving a free Swiftslash that early into the game gives Juggernaut a massive boost to his kill threat, letting him hunt for pickoffs all over the map. When they do fight together, Alchemist’s Acid Spray shreds armor, making Juggernaut's physical damage from both his auto-attacks and Omnislash significantly more potent. A well-timed Unstable Concoction can also lock a target down for a full Blade Fury.

The major downside is the sheer greed of having both Alchemist and Juggernaut on one team. Both heroes require a lot of resources and space to farm, which can leave your team very vulnerable to early and mid-game pressure. An aggressive opponent will try to run at you, starve you off the map, and end the game before the Scepter plan can ever come online. The success of this duo often depends entirely on whether your team can create enough space for them to hit their timings before the enemy takes control of the game.