Learn how to counter and when to pick Io from our list of counters and matchups updated for the current meta.
| Hero | DisadvantageDis. | Hero Win Rate | |
|---|---|---|---|
 | Underlord | 2.89% | 44.70% |
 | Ancient Apparition | 2.72% | 45.99% |
 | Monkey King | 2.63% | 52.75% |
 | Troll Warlord | 2.51% | 44.72% |
 | Sven | 2.47% | 50.65% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.81% | 50.79% |
 | Void Spirit | 2.86% | 53.71% |
 | Arc Warden | 2.85% | 49.47% |
 | Oracle | 2.59% | 50.96% |
 | Shadow Demon | 2.40% | 54.05% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Underlord | 2.89% | 44.70% | 17,418 |
| Ancient Apparition | 2.72% | 45.99% | 39,543 |
| Monkey King | 2.63% | 52.75% | 41,819 |
| Troll Warlord | 2.51% | 44.72% | 36,746 |
| Sven | 2.47% | 50.65% | 20,310 |
 | Broodmother | 2.43% | 55.44% | 14,258 |
 | Crystal Maiden | 2.11% | 47.74% | 68,610 |
 | Dark Willow | 2.08% | 49.04% | 26,441 |
 | Windranger | 1.90% | 51.27% | 64,117 |
 | Earthshaker | 1.85% | 47.98% | 55,552 |
 | Huskar | 1.84% | 49.06% | 25,068 |
 | Winter Wyvern | 1.70% | 48.14% | 30,914 |
 | Keeper of the Light | 1.63% | 52.74% | 25,876 |
 | Lina | 1.60% | 51.95% | 50,525 |
 | Weaver | 1.58% | 51.01% | 41,477 |
 | Enigma | 1.46% | 49.55% | 18,404 |
 | Magnus | 1.45% | 51.30% | 55,671 |
 | Doom | 1.43% | 50.29% | 22,137 |
 | Kunkka | 1.39% | 46.42% | 39,267 |
 | Batrider | 1.38% | 56.76% | 10,837 |
 | Slardar | 1.33% | 45.61% | 57,616 |
 | Chaos Knight | 1.20% | 50.34% | 30,471 |
 | Viper | 1.16% | 46.64% | 43,399 |
 | Lycan | 1.16% | 49.54% | 6,066 |
 | Luna | 1.09% | 49.29% | 59,395 |
 | Faceless Void | 1.06% | 51.56% | 56,669 |
 | Gyrocopter | 1.03% | 51.79% | 28,650 |
 | Ember Spirit | 1.03% | 52.57% | 20,331 |
 | Terrorblade | 1.02% | 54.82% | 9,665 |
 | Medusa | 0.96% | 46.94% | 23,577 |
 | Dragon Knight | 0.94% | 49.78% | 31,535 |
 | Sand King | 0.92% | 46.65% | 31,243 |
 | Pangolier | 0.85% | 54.33% | 20,598 |
 | Primal Beast | 0.82% | 51.38% | 23,248 |
 | Drow Ranger | 0.80% | 45.84% | 78,187 |
 | Ursa | 0.80% | 50.25% | 37,998 |
 | Mars | 0.80% | 52.81% | 34,092 |
 | Beastmaster | 0.79% | 53.23% | 6,066 |
 | Lich | 0.76% | 47.29% | 45,255 |
 | Mirana | 0.76% | 51.07% | 36,243 |
 | Slark | 0.75% | 51.18% | 50,258 |
 | Death Prophet | 0.70% | 47.40% | 21,649 |
 | Templar Assassin | 0.68% | 54.85% | 27,052 |
 | Enchantress | 0.68% | 54.45% | 20,287 |
 | Hoodwink | 0.64% | 49.48% | 75,056 |
 | Queen of Pain | 0.62% | 52.29% | 30,816 |
 | Dark Seer | 0.59% | 46.89% | 12,753 |
 | Marci | 0.58% | 49.75% | 34,034 |
 | Bounty Hunter | 0.58% | 49.65% | 47,415 |
 | Treant Protector | 0.46% | 47.71% | 19,831 |
 | Elder Titan | 0.44% | 49.83% | 8,190 |
 | Vengeful Spirit | 0.43% | 47.53% | 68,563 |
 | Nature's Prophet | 0.43% | 53.11% | 66,070 |
 | Warlock | 0.38% | 46.56% | 33,008 |
 | Snapfire | 0.36% | 53.34% | 28,868 |
 | Sniper | 0.36% | 49.05% | 92,359 |
 | Techies | 0.34% | 50.27% | 46,635 |
 | Razor | 0.32% | 49.69% | 45,320 |
 | Dawnbreaker | 0.30% | 50.18% | 25,506 |
 | Muerta | 0.29% | 52.27% | 17,687 |
 | Shadow Fiend | 0.26% | 50.52% | 65,191 |
 | Chen | 0.20% | 55.01% | 5,383 |
 | Ogre Magi | 0.18% | 47.54% | 77,133 |
 | Rubick | 0.15% | 54.12% | 60,144 |
 | Witch Doctor | 0.14% | 46.34% | 89,886 |
 | Alchemist | 0.13% | 51.01% | 17,251 |
 | Spirit Breaker | 0.05% | 49.62% | 68,083 |
 | Outworld Destroyer | 0.04% | 48.80% | 28,170 |
 | Naga Siren | -0.06% | 52.60% | 13,253 |
 | Jakiro | -0.09% | 47.36% | 60,919 |
 | Phantom Assassin | -0.09% | 51.50% | 84,025 |
 | Tusk | -0.10% | 54.40% | 25,152 |
 | Lone Druid | -0.10% | 50.21% | 7,951 |
 | Undying | -0.15% | 47.51% | 35,057 |
 | Bristleback | -0.16% | 48.16% | 53,119 |
 | Riki | -0.19% | 48.43% | 39,167 |
 | Lion | -0.22% | 52.58% | 106,769 |
 | Dazzle | -0.25% | 49.40% | 51,575 |
 | Shadow Shaman | -0.27% | 47.28% | 69,951 |
 | Silencer | -0.29% | 48.17% | 37,019 |
 | Disruptor | -0.33% | 47.14% | 59,652 |
 | Morphling | -0.39% | 52.60% | 48,691 |
 | Bane | -0.39% | 49.41% | 27,416 |
 | Venomancer | -0.40% | 46.97% | 49,613 |
 | Nyx Assassin | -0.48% | 48.73% | 37,655 |
 | Phantom Lancer | -0.49% | 48.34% | 31,906 |
 | Bloodseeker | -0.49% | 48.18% | 25,189 |
 | Pugna | -0.50% | 51.63% | 26,084 |
 | Clockwerk | -0.51% | 50.73% | 28,239 |
 | Skywrath Mage | -0.55% | 50.37% | 47,166 |
 | Leshrac | -0.64% | 45.98% | 31,846 |
 | Omniknight | -0.70% | 51.60% | 30,795 |
 | Axe | -0.71% | 46.79% | 84,233 |
 | Meepo | -0.71% | 48.18% | 15,904 |
 | Centaur Warrunner | -0.74% | 48.80% | 35,034 |
 | Tiny | -0.78% | 53.39% | 32,597 |
 | Visage | -0.81% | 51.03% | 8,217 |
 | Brewmaster | -0.83% | 50.74% | 8,876 |
 | Tidehunter | -0.86% | 50.96% | 22,195 |
 | Phoenix | -0.88% | 52.25% | 17,035 |
 | Pudge | -0.94% | 49.35% | 152,964 |
 | Necrophos | -0.97% | 48.15% | 51,763 |
 | Juggernaut | -1.00% | 50.54% | 58,251 |
 | Legion Commander | -1.01% | 50.63% | 65,449 |
 | Earth Spirit | -1.10% | 52.40% | 17,310 |
 | Lifestealer | -1.15% | 47.24% | 68,453 |
 | Wraith King | -1.19% | 48.09% | 43,393 |
 | Grimstroke | -1.22% | 51.22% | 33,982 |
 | Zeus | -1.23% | 47.56% | 79,825 |
 | Clinkz | -1.28% | 49.42% | 37,340 |
 | Storm Spirit | -1.32% | 53.26% | 25,593 |
 | Tinker | -1.35% | 52.84% | 22,286 |
 | Invoker | -1.42% | 54.05% | 80,064 |
 | Night Stalker | -1.44% | 49.68% | 21,167 |
 | Puck | -1.70% | 54.08% | 32,972 |
 | Abaddon | -2.14% | 46.85% | 39,222 |
 | Spectre | -2.20% | 51.41% | 38,426 |
 | Timbersaw | -2.21% | 52.07% | 42,579 |
| Shadow Demon | -2.40% | 54.05% | 12,238 |
| Oracle | -2.59% | 50.96% | 30,965 |
| Arc Warden | -2.85% | 49.47% | 26,800 |
| Void Spirit | -2.86% | 53.71% | 16,800 |
| Anti-Mage | -3.81% | 50.79% | 67,004 |
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