Mars + Necrophos

Why this works

Fighting inside an Arena of Blood puts Necrophos in an awkward spot. The ultimate goal is for Mars to trap enemies so the team can collapse, but Necrophos wants to grind enemies down from a distance. The Arena wall blocks his Death Pulse, preventing him from healing Mars or damaging enemies from the outside. If Necrophos goes inside the Arena with Mars, he becomes a primary target and loses his ability to kite enemies, which is key to his survival. While Mars can set up a Reaper's Scythe kill, the fundamental clash in positioning makes their teamfights feel disjointed.

This pairing often creates two separate game plans running at the same time. Mars wants to make decisive pickoffs with Spear and Arena, while Necrophos excels in long, drawn-out brawls where his Heartstopper Aura wears everyone down. The team can feel split between playing for Mars's initiation and enabling Necrophos's slow siege. For this combination to work, Necrophos needs to play perfectly around the edges of the Arena, hoping for a clean ultimate on a trapped target. More often, one hero is left unable to contribute effectively while the other uses their biggest cooldown.