Underlord + Luna

Why this works

Setting up a Fiend's Gate to deliver Luna for a surprise Eclipse is the dream, but it's a telegraphed play. The enemy team can see the exit portal forming, giving them time to either retreat or prepare their stuns for whatever comes through. A fragile hero like Luna arriving alone, even with a BKB, is often a death sentence. Underlord's Gate is a repositioning tool, but using it for hard initiation on a hero who can be instantly focused and killed is a huge risk that often backfires.

What usually happens is that the heroes end up fighting near each other, but not truly together. Underlord provides area control with Pit of Malice and Firestorm, creating space and being a durable frontline presence. This can be useful for any carry, but it’s not a specific synergy. Luna still has to find her own opening to safely get her damage and Eclipse off, often waiting for Underlord to draw out the big enemy spells first. They operate more as two separate strong heroes than a coordinated pair, which is why their success together is so inconsistent.