Magnus + Viper

Why this works

Picking these two together often comes down to hoping their ultimates align. The main idea is for Magnus to land a Reverse Polarity, creating a perfect target area for Viper to blanket with Nethertoxin. This combination can disable enemy passives and apply heavy damage over time in a clump. The problem is that Viper doesn't provide the immediate, explosive burst that usually follows a big teamfight stun. His damage is slow and steady, meaning enemies caught in the initial setup may well survive the stun and have a chance to react.

Throughout the game, this pairing feels situational. Empower can help Viper's farm, but he isn't the kind of physical carry who makes the most of the cleave. In teamfights, the success of a Reverse Polarity into Viper's spells is very conditional. If Magnus catches a crucial, fragile hero and Viper can melt them, it works. If Viper has to expose himself to danger to cast his spells or the damage gets spread too thin on tanky targets, the whole engagement can fall flat. It relies heavily on perfect execution against the right lineup.