Magnus + Razor

Why this works

Catching a Reverse Polarity is always dangerous, but the follow-up from Razor isn't as clean as it might seem. The core issue is Empower. A huge part of Magnus's value is granting cleave to his carry, and that effect is completely wasted on a ranged hero like Razor. It means one of Magnus's key abilities provides only a fraction of its potential benefit. Razor also prefers to kite and maintain his Static Link from a safe distance, which can conflict with the tight clump of heroes Magnus creates. It makes it hard for Razor to get his link on the most important target.

This awkwardness plays out in teamfights. Magnus sets up a perfect multi-hero stun, creating a moment for massive area damage, but Razor can still only attack one target at a time. While the stun is happening, other cores could be cleaving through the entire enemy team. With this pairing, opponents not focused by Razor often have enough time to recover and retaliate after the stun wears off. The combo isn't useless, but it feels like a missed opportunity compared to pairing Magnus with a melee core who can fully exploit both Empower and Reverse Polarity.