Bounty Hunter + Invoker

Why this works

Thinking that Track sets up easy Sun Strikes is a common trap. While giving Invoker vision for a global snipe can feel good, it's not a reliable kill. The target is often moving, and coordinating the hit requires good timing from both players. Outside of that specific interaction, the main benefit is the bonus gold from Track kills, which helps any Invoker get his core items faster. This is a nice, general bonus, but it doesn't create a truly powerful lane or gank partnership on its own. The heroes' kits don't otherwise combine in a special way.

In practice, Bounty Hunter and Invoker often operate on different timetables. Bounty Hunter wants to be active early, creating pressure and looking for pickoffs. Invoker, especially a Quas Exort build, prefers to farm and use Sun Strike opportunistically from a safe distance. He isn't always ready or able to follow up on the skirmishes Bounty Hunter starts across the map. They can feel like they're playing separate games that only occasionally overlap, which explains why the pairing doesn't consistently produce better results than any other random combination.