Weaver + Zeus

Why this works

Combining their damage for easy kills seems like a solid plan, but Weaver and Zeus often operate on different wavelengths. Zeus provides a ton of magic burst from the backline, but he's most effective when enemies are held in place. Weaver, a hyper-mobile skirmisher, offers no stuns or slows to help set this up. He uses Shukuchi to weave through fights and Time Lapse to save himself, but he has no real way to protect the slow, fragile Zeus from being overrun. Their damage types are mixed, but without any enabling control between them, it's hard to focus down a priority target.

This dynamic often results in disconnected teamfights. Zeus might soften up several heroes with Thundergod's Wrath, but Weaver is then left to chase weakened targets who can split up, kite him, or simply turn around and burst him. For the pairing to work, your team needs to provide a lot of lockdown from other positions. Lacking that, Weaver is forced to play a solo skirmishing game on the fringes of the fight, while Zeus has to position very defensively. They don't get in each other's way, but they don't actively help each other secure kills or control the map either.