Arc Warden + Faceless Void

Why this works

Placing a Magnetic Field inside a Chronosphere can give Faceless Void a significant attack speed boost to finish off his targets. Arc Warden's Tempest Double can cast this from a safe distance, also adding damage with Spark Wraiths and its own attacks. This allows the duo to potentially burst down a key target caught by Void. The main hero can stay far back while the clone provides all the necessary support inside the Chronosphere, offering a mix of utility and magical damage that helps secure kills on otherwise durable enemies.

This pairing demands a lot of resources from the map, however. Both Arc Warden and Faceless Void are greedy cores who need time and space to farm their key items. This can leave the rest of your team vulnerable during the mid-game, as you effectively have two heroes focused on scaling rather than fighting. Their success often depends on whether the early game goes well enough for both to get the farm they need. If they fall behind, it's hard to recover, but if they reach their timings, their combined late-game presence can be difficult to handle.