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 | |
|---|---|---|---|
 | Monkey King | 2.89% | 51.05% |
 | Ancient Apparition | 2.86% | 45.18% |
 | Troll Warlord | 2.70% | 44.44% |
 | Underlord | 2.38% | 44.67% |
 | Dark Willow | 2.17% | 46.02% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Oracle | 2.82% | 49.73% |
 | Arc Warden | 2.69% | 49.85% |
 | Anti-Mage | 2.68% | 53.07% |
 | Void Spirit | 2.66% | 49.66% |
 | Abaddon | 2.39% | 47.35% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.89% | 51.05% | 35,652 |
| Ancient Apparition | 2.86% | 45.18% | 39,925 |
| Troll Warlord | 2.70% | 44.44% | 30,124 |
| Underlord | 2.38% | 44.67% | 16,063 |
| Dark Willow | 2.17% | 46.02% | 38,015 |
 | Terrorblade | 2.16% | 53.96% | 11,603 |
 | Doom | 2.14% | 50.57% | 19,113 |
 | Batrider | 1.94% | 55.19% | 9,041 |
 | Broodmother | 1.89% | 50.51% | 13,193 |
 | Dragon Knight | 1.76% | 46.63% | 41,987 |
 | Earthshaker | 1.76% | 49.07% | 51,807 |
 | Keeper of the Light | 1.75% | 51.95% | 17,731 |
 | Marci | 1.70% | 49.87% | 29,420 |
 | Crystal Maiden | 1.63% | 47.29% | 61,033 |
 | Pangolier | 1.63% | 55.14% | 13,736 |
 | Windranger | 1.56% | 49.67% | 51,696 |
 | Beastmaster | 1.52% | 53.13% | 6,548 |
 | Magnus | 1.51% | 53.31% | 37,818 |
 | Sven | 1.44% | 52.09% | 16,127 |
 | Kunkka | 1.43% | 50.62% | 23,345 |
 | Enigma | 1.42% | 47.35% | 17,836 |
 | Lone Druid | 1.41% | 48.05% | 7,973 |
 | Medusa | 1.40% | 46.56% | 16,347 |
 | Death Prophet | 1.37% | 51.47% | 15,231 |
 | Razor | 1.33% | 49.72% | 30,625 |
 | Slardar | 1.29% | 47.12% | 51,077 |
 | Techies | 1.29% | 52.44% | 46,455 |
 | Primal Beast | 1.28% | 49.55% | 18,129 |
 | Shadow Fiend | 1.27% | 48.20% | 96,409 |
 | Viper | 1.23% | 50.00% | 33,160 |
 | Lycan | 1.06% | 50.67% | 12,514 |
 | Gyrocopter | 1.06% | 51.40% | 24,362 |
 | Dazzle | 1.00% | 49.80% | 46,046 |
 | Mirana | 0.97% | 52.39% | 24,467 |
 | Lich | 0.94% | 45.16% | 45,124 |
 | Luna | 0.92% | 50.13% | 35,534 |
 | Vengeful Spirit | 0.92% | 47.29% | 61,636 |
 | Undying | 0.91% | 45.66% | 36,827 |
 | Sand King | 0.91% | 47.38% | 35,609 |
 | Dark Seer | 0.90% | 46.33% | 14,049 |
 | Jakiro | 0.88% | 47.83% | 58,459 |
 | Lina | 0.87% | 52.63% | 47,313 |
 | Ember Spirit | 0.84% | 49.63% | 19,950 |
 | Winter Wyvern | 0.82% | 47.41% | 27,159 |
 | Drow Ranger | 0.76% | 48.34% | 60,283 |
 | Mars | 0.74% | 52.50% | 30,813 |
 | Tusk | 0.69% | 55.21% | 18,118 |
 | Disruptor | 0.66% | 48.05% | 47,363 |
 | Huskar | 0.62% | 51.61% | 20,377 |
 | Ogre Magi | 0.61% | 47.60% | 69,624 |
 | Elder Titan | 0.60% | 48.44% | 7,102 |
 | Weaver | 0.56% | 48.18% | 47,052 |
 | Queen of Pain | 0.56% | 51.98% | 25,913 |
 | Omniknight | 0.53% | 51.69% | 16,708 |
 | Outworld Destroyer | 0.50% | 46.93% | 25,687 |
 | Ursa | 0.45% | 48.98% | 45,025 |
 | Slark | 0.43% | 51.90% | 41,851 |
 | Phantom Assassin | 0.36% | 52.13% | 68,108 |
 | Snapfire | 0.33% | 53.81% | 22,805 |
 | Faceless Void | 0.23% | 51.45% | 44,865 |
 | Treant Protector | 0.19% | 47.88% | 21,379 |
 | Bounty Hunter | 0.19% | 48.09% | 39,107 |
 | Enchantress | 0.15% | 54.17% | 18,199 |
 | Chaos Knight | 0.15% | 47.64% | 34,514 |
 | Bristleback | 0.14% | 51.57% | 42,096 |
 | Grimstroke | 0.11% | 50.43% | 31,448 |
 | Muerta | 0.11% | 52.79% | 16,025 |
 | Chen | 0.09% | 56.13% | 3,688 |
 | Naga Siren | 0.07% | 51.33% | 9,119 |
 | Morphling | 0.03% | 55.71% | 24,811 |
 | Warlock | 0.03% | 45.06% | 43,359 |
 | Leshrac | 0.02% | 45.60% | 24,620 |
 | Venomancer | -0.02% | 47.51% | 56,436 |
 | Lion | -0.07% | 51.38% | 100,792 |
 | Dawnbreaker | -0.08% | 50.46% | 19,062 |
 | Sniper | -0.09% | 51.72% | 73,899 |
 | Hoodwink | -0.09% | 50.59% | 68,593 |
 | Witch Doctor | -0.12% | 47.10% | 83,868 |
 | Bane | -0.14% | 50.11% | 20,780 |
 | Tiny | -0.14% | 48.91% | 48,048 |
 | Templar Assassin | -0.21% | 49.99% | 47,357 |
 | Alchemist | -0.21% | 49.98% | 16,054 |
 | Nature's Prophet | -0.29% | 55.35% | 38,735 |
 | Nyx Assassin | -0.47% | 50.07% | 33,041 |
 | Legion Commander | -0.48% | 47.05% | 79,053 |
 | Pugna | -0.48% | 52.77% | 22,387 |
 | Meepo | -0.49% | 48.53% | 15,124 |
 | Clockwerk | -0.51% | 48.90% | 24,508 |
 | Spirit Breaker | -0.52% | 48.33% | 67,942 |
 | Phoenix | -0.54% | 49.09% | 27,582 |
 | Riki | -0.55% | 49.32% | 27,537 |
 | Silencer | -0.57% | 47.24% | 46,264 |
 | Rubick | -0.61% | 52.58% | 65,363 |
 | Axe | -0.64% | 45.41% | 90,987 |
 | Phantom Lancer | -0.65% | 47.10% | 35,651 |
 | Shadow Shaman | -0.65% | 45.82% | 80,437 |
 | Visage | -0.66% | 49.53% | 8,298 |
 | Wraith King | -0.68% | 44.57% | 68,906 |
 | Zeus | -0.71% | 47.50% | 79,547 |
 | Earth Spirit | -0.73% | 53.29% | 15,979 |
 | Pudge | -0.82% | 48.15% | 148,995 |
 | Tidehunter | -0.93% | 52.89% | 22,139 |
 | Shadow Demon | -0.98% | 52.87% | 14,109 |
 | Tinker | -1.11% | 55.67% | 23,014 |
 | Centaur Warrunner | -1.13% | 47.75% | 41,642 |
 | Clinkz | -1.24% | 49.26% | 35,610 |
 | Bloodseeker | -1.33% | 51.44% | 15,945 |
 | Timbersaw | -1.39% | 52.67% | 37,101 |
 | Spectre | -1.45% | 52.91% | 26,342 |
 | Invoker | -1.48% | 54.86% | 67,884 |
 | Puck | -1.48% | 54.44% | 21,560 |
 | Juggernaut | -1.57% | 47.97% | 82,331 |
 | Skywrath Mage | -1.60% | 49.38% | 39,912 |
 | Night Stalker | -1.69% | 48.23% | 32,210 |
 | Lifestealer | -1.75% | 48.35% | 61,250 |
 | Necrophos | -1.81% | 48.23% | 46,488 |
 | Storm Spirit | -1.89% | 50.71% | 44,311 |
 | Brewmaster | -1.95% | 51.31% | 6,519 |
| Abaddon | -2.39% | 47.35% | 30,491 |
| Void Spirit | -2.66% | 49.66% | 24,715 |
| Anti-Mage | -2.68% | 53.07% | 53,004 |
| Arc Warden | -2.69% | 49.85% | 19,387 |
| Oracle | -2.82% | 49.73% | 25,964 |
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