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Io (May 2014) Synergies / Counters

This feature is experimental. The synergies are calculated against the baseline rate at which heroes are picked at, but the counters are still skewed by the overall frequency that a hero is chosen. Use these as guidelines and compare with the overall tier list, rather than as strict fact.
Heroes Io Synergizes With
HeroChange
Tiny+%24.2
Riki+%4.6
Ursa+%3.4
Keeper of the Light+%0.9
Venomancer+%0.8
Sven+%0.8
Medusa+%0.6
Bounty Hunter+%0.5
Chaos Knight+%0.5
Pudge+%0.0
Troll Warlord+%0.0
Heroes Io Counters
HeroTimes Picked After
Invoker34
Mirana25
Treant Protector21
Batrider17
Centaur Warrunner16
Ancient Apparition15
Shadow Demon14
Dazzle13
Sand King11
Doom10