Kunkka + Spirit Breaker

Why this works

Setting up a kill from across the map becomes a real possibility with this pair. Spirit Breaker's Charge of Darkness provides a perfect signal for Kunkka to prepare his abilities. As the charge connects, Kunkka can either use X Marks the Spot to hold the victim in place or simply time a Torrent and Ghostship for the moment of impact. This allows for a long-range stun chain that can pick off an isolated enemy without Kunkka ever having to put himself at risk. The global presence of the charge combined with the area-of-effect control from Kunkka creates reliable gank potential.

The main problem is that this entire sequence is very easy for the enemy team to see coming. The Charge of Darkness icon gives them plenty of warning to reposition or prepare a save like a Glimmer Cape or Force Staff. Success often depends on catching an opponent who is truly alone and without support. If the initial gank fails, both heroes have used key abilities for no gain. Kunkka may also find his own farming rhythm with Tidebringer disrupted if he's constantly on standby for a potential charge, making the coordination feel a bit clunky at times.