Volibear vs Amumu Counter Pick

Amumu is one of the few enemies whose passive makes magic resistance matter differently. Cursed Touch has his basic attacks mark a target so that later magic damage also deals bonus true damage, and true damage bypasses the 32 magic resistance Volibear begins with. On paper that should hurt him. The recorded data disagrees: Volibear wins the jungle matchup 56.2% of the time across 121 games on patch 16.13.1.

The explanation lies in Tantrum and in how Amumu’s health develops over a game. Tantrum permanently reduces the physical damage Amumu receives, and Volibear’s damage is physical, but the reduction is a fixed amount rather than a percentage, so it counts for least when the hits are biggest. The Relentless Storm ramps up his attack speed until each attack sends bonus magic damage to everything nearby, and Amumu’s magic resistance is the same 32 that Volibear has. Amumu starts with more health at 685 and finishes at 2,283, while Volibear reaches 2,418, with 101 armor for Amumu against 123.4 for Volibear.

Positioning settles the rest. Bandage Toss is Amumu’s only gap closer and his main way to start a fight; after he uses it, he has no way to disengage, and Sky Splitter is strong enough to keep him in a fight he wants to leave, shielding Volibear whenever Volibear stands inside the blast. Both champions have a difficulty rating of 3, so cooldown timing, not mechanical skill, decides most of these exchanges. Kit details are on the Amumu page.