Senna vs Amumu Counter Pick

Amumu has one way to reach Senna, and it is a skillshot. Bandage Toss stuns and pulls him to the target; miss it, and a champion with 125 attack range spends the exchange walking toward one with 600. That distance frames the support matchup, and nothing else in his kit closes it.

His damage is entirely magic, and Cursed Touch makes cursed targets take bonus true damage from incoming magic, so magic resistance rather than armor is the purchase that matters for Senna, who starts on 30 and reaches only 2,043 health and 93 armor at level 18. Despair drains a percentage of maximum health each second, which punishes stacking health more than resistances. Her counterplay is patience: Absolution converts nearby deaths into permanent growth without asking her to stand next to Amumu, and Piercing Darkness heals an ally through the same cast that damages him. Tantrum permanently reduces the physical damage he absorbs, which is worth less against a mixed profile built on abilities than against a pure marksman, and he moves at 335 to her 330. He is rated 3 for execution against her 7, and his 685 base health is the larger opening pool of the two, though it grows only to 2,283. Patch 16.13.1 tracks 246 encounters and settles at 56.9% for Senna, a result the model grades Easy, which is roughly what a 475-unit difference in reach should produce.