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 | 2.84% | 52.49% |
 | Ancient Apparition | 2.70% | 45.95% |
 | Broodmother | 2.65% | 55.41% |
 | Underlord | 2.62% | 44.92% |
 | Troll Warlord | 2.60% | 44.56% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.94% | 50.96% |
 | Shadow Demon | 2.72% | 54.36% |
 | Arc Warden | 2.61% | 48.99% |
 | Oracle | 2.56% | 51.05% |
 | Void Spirit | 2.51% | 53.53% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.84% | 52.49% | 44,805 |
| Ancient Apparition | 2.70% | 45.95% | 42,147 |
| Broodmother | 2.65% | 55.41% | 15,664 |
| Underlord | 2.62% | 44.92% | 18,757 |
| Troll Warlord | 2.60% | 44.56% | 39,267 |
 | Sven | 2.26% | 50.79% | 21,426 |
 | Dark Willow | 2.23% | 48.74% | 28,711 |
 | Crystal Maiden | 2.07% | 47.69% | 73,521 |
 | Windranger | 2.06% | 51.12% | 68,378 |
 | Lycan | 1.97% | 48.65% | 6,282 |
 | Keeper of the Light | 1.80% | 52.54% | 29,243 |
 | Batrider | 1.79% | 56.55% | 11,352 |
 | Winter Wyvern | 1.77% | 48.05% | 33,966 |
 | Earthshaker | 1.65% | 48.13% | 60,293 |
 | Huskar | 1.65% | 49.28% | 26,671 |
 | Lina | 1.59% | 51.91% | 54,632 |
 | Doom | 1.59% | 50.04% | 24,017 |
 | Magnus | 1.55% | 51.22% | 57,354 |
 | Weaver | 1.43% | 51.08% | 45,078 |
 | Viper | 1.41% | 46.23% | 46,883 |
 | Chaos Knight | 1.40% | 50.18% | 33,454 |
 | Ember Spirit | 1.39% | 52.26% | 21,120 |
 | Terrorblade | 1.30% | 54.68% | 9,992 |
 | Slardar | 1.18% | 45.49% | 62,604 |
 | Faceless Void | 1.13% | 51.50% | 59,000 |
 | Drow Ranger | 1.09% | 45.68% | 84,509 |
 | Dragon Knight | 1.08% | 49.59% | 32,812 |
 | Kunkka | 1.08% | 46.62% | 41,688 |
 | Enigma | 1.08% | 49.93% | 19,497 |
 | Primal Beast | 1.06% | 51.15% | 24,247 |
 | Luna | 0.99% | 49.38% | 62,742 |
 | Gyrocopter | 0.96% | 51.85% | 30,143 |
 | Lich | 0.89% | 47.15% | 48,546 |
 | Templar Assassin | 0.88% | 54.60% | 29,130 |
 | Pangolier | 0.87% | 54.23% | 22,806 |
 | Slark | 0.84% | 51.19% | 53,234 |
 | Dark Seer | 0.81% | 46.81% | 13,190 |
 | Medusa | 0.78% | 47.14% | 25,434 |
 | Sand King | 0.76% | 46.80% | 33,360 |
 | Hoodwink | 0.74% | 49.33% | 82,263 |
 | Queen of Pain | 0.74% | 52.18% | 32,975 |
 | Mars | 0.74% | 52.87% | 36,680 |
 | Warlock | 0.59% | 46.37% | 35,690 |
 | Death Prophet | 0.59% | 47.56% | 23,029 |
 | Bounty Hunter | 0.58% | 49.65% | 50,663 |
 | Mirana | 0.57% | 51.30% | 38,565 |
 | Dawnbreaker | 0.55% | 49.88% | 27,646 |
 | Beastmaster | 0.55% | 53.33% | 6,488 |
 | Marci | 0.54% | 49.80% | 37,283 |
 | Treant Protector | 0.53% | 47.52% | 21,019 |
 | Ursa | 0.51% | 50.52% | 41,205 |
 | Elder Titan | 0.49% | 49.79% | 8,699 |
 | Razor | 0.47% | 49.52% | 48,434 |
 | Shadow Fiend | 0.46% | 50.22% | 70,556 |
 | Nature's Prophet | 0.42% | 53.08% | 71,137 |
 | Enchantress | 0.39% | 54.69% | 22,826 |
 | Sniper | 0.37% | 48.94% | 97,996 |
 | Muerta | 0.36% | 52.19% | 19,012 |
 | Tusk | 0.35% | 53.99% | 26,917 |
 | Snapfire | 0.28% | 53.35% | 31,080 |
 | Ogre Magi | 0.24% | 47.43% | 82,808 |
 | Spirit Breaker | 0.22% | 49.46% | 73,242 |
 | Techies | 0.19% | 50.47% | 50,126 |
 | Alchemist | 0.19% | 50.89% | 17,646 |
 | Chen | 0.17% | 55.31% | 5,648 |
 | Vengeful Spirit | 0.17% | 47.69% | 77,193 |
 | Naga Siren | 0.14% | 52.49% | 13,931 |
 | Undying | 0.12% | 47.11% | 37,297 |
 | Lone Druid | 0.11% | 49.85% | 8,453 |
 | Outworld Destroyer | 0.04% | 48.71% | 29,675 |
 | Witch Doctor | -0.02% | 46.40% | 96,080 |
 | Rubick | -0.03% | 54.31% | 63,901 |
 | Jakiro | -0.08% | 47.26% | 65,635 |
 | Bristleback | -0.14% | 48.15% | 60,778 |
 | Riki | -0.16% | 48.42% | 44,414 |
 | Dazzle | -0.19% | 49.31% | 55,462 |
 | Morphling | -0.20% | 52.47% | 50,000 |
 | Lion | -0.23% | 52.62% | 111,253 |
 | Phantom Assassin | -0.24% | 51.59% | 92,020 |
 | Silencer | -0.38% | 48.17% | 39,054 |
 | Shadow Shaman | -0.38% | 47.31% | 74,764 |
 | Pugna | -0.43% | 51.54% | 27,199 |
 | Disruptor | -0.45% | 47.20% | 65,489 |
 | Leshrac | -0.49% | 45.60% | 32,789 |
 | Bane | -0.53% | 49.47% | 29,743 |
 | Venomancer | -0.54% | 46.93% | 55,070 |
 | Nyx Assassin | -0.54% | 48.76% | 39,968 |
 | Phantom Lancer | -0.55% | 48.25% | 35,231 |
 | Skywrath Mage | -0.58% | 50.32% | 52,973 |
 | Tiny | -0.68% | 53.33% | 34,149 |
 | Juggernaut | -0.70% | 50.23% | 62,462 |
 | Omniknight | -0.73% | 51.62% | 32,590 |
 | Centaur Warrunner | -0.74% | 48.81% | 37,350 |
 | Bloodseeker | -0.76% | 48.41% | 27,418 |
 | Tidehunter | -0.78% | 50.94% | 23,927 |
 | Visage | -0.80% | 50.95% | 9,032 |
 | Wraith King | -0.86% | 47.65% | 47,842 |
 | Clockwerk | -0.88% | 51.18% | 31,074 |
 | Axe | -0.90% | 46.93% | 90,771 |
 | Phoenix | -0.91% | 52.24% | 18,453 |
 | Legion Commander | -0.91% | 50.48% | 71,443 |
 | Brewmaster | -0.92% | 50.70% | 9,590 |
 | Pudge | -0.93% | 49.25% | 165,088 |
 | Necrophos | -0.93% | 48.08% | 55,733 |
 | Grimstroke | -0.96% | 50.89% | 36,574 |
 | Clinkz | -1.11% | 49.19% | 41,044 |
 | Zeus | -1.13% | 47.40% | 86,490 |
 | Meepo | -1.19% | 48.58% | 17,698 |
 | Earth Spirit | -1.20% | 52.37% | 19,269 |
 | Storm Spirit | -1.32% | 53.12% | 27,342 |
 | Lifestealer | -1.38% | 47.15% | 75,776 |
 | Invoker | -1.50% | 54.24% | 85,892 |
 | Puck | -1.61% | 53.96% | 34,213 |
 | Night Stalker | -1.74% | 49.84% | 25,934 |
 | Tinker | -1.89% | 53.16% | 26,771 |
 | Spectre | -1.94% | 51.20% | 41,795 |
 | Abaddon | -2.23% | 46.89% | 43,152 |
 | Timbersaw | -2.37% | 52.19% | 46,470 |
| Void Spirit | -2.51% | 53.53% | 17,489 |
| Oracle | -2.56% | 51.05% | 33,426 |
| Arc Warden | -2.61% | 48.99% | 28,334 |
| Shadow Demon | -2.72% | 54.36% | 13,082 |
| Anti-Mage | -3.94% | 50.96% | 72,129 |
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