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% | 52.50% |
 | Ancient Apparition | 2.69% | 46.00% |
 | Broodmother | 2.64% | 55.36% |
 | Underlord | 2.61% | 44.95% |
 | Troll Warlord | 2.49% | 44.66% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.93% | 50.95% |
 | Shadow Demon | 2.80% | 54.43% |
 | Arc Warden | 2.60% | 49.02% |
 | Oracle | 2.49% | 50.96% |
 | Void Spirit | 2.46% | 53.48% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.84% | 52.50% | 44,789 |
| Ancient Apparition | 2.69% | 46.00% | 42,248 |
| Broodmother | 2.64% | 55.36% | 15,579 |
| Underlord | 2.61% | 44.95% | 18,699 |
| Troll Warlord | 2.49% | 44.66% | 39,387 |
 | Sven | 2.30% | 50.82% | 21,469 |
 | Dark Willow | 2.20% | 48.84% | 28,639 |
 | Crystal Maiden | 2.06% | 47.71% | 73,573 |
 | Windranger | 2.03% | 51.16% | 68,397 |
 | Lycan | 2.00% | 48.65% | 6,288 |
 | Winter Wyvern | 1.81% | 48.03% | 33,753 |
 | Earthshaker | 1.76% | 48.05% | 60,155 |
 | Keeper of the Light | 1.74% | 52.60% | 28,998 |
 | Huskar | 1.70% | 49.23% | 26,675 |
 | Lina | 1.67% | 51.85% | 54,522 |
 | Batrider | 1.67% | 56.64% | 11,397 |
 | Weaver | 1.57% | 50.95% | 44,886 |
 | Doom | 1.56% | 50.09% | 24,002 |
 | Magnus | 1.50% | 51.26% | 57,619 |
 | Chaos Knight | 1.46% | 50.14% | 33,364 |
 | Viper | 1.36% | 46.32% | 46,796 |
 | Ember Spirit | 1.30% | 52.35% | 21,222 |
 | Terrorblade | 1.22% | 54.73% | 10,052 |
 | Kunkka | 1.16% | 46.57% | 41,727 |
 | Slardar | 1.15% | 45.57% | 62,335 |
 | Faceless Void | 1.15% | 51.49% | 59,405 |
 | Medusa | 1.09% | 46.86% | 25,376 |
 | Enigma | 1.07% | 49.92% | 19,639 |
 | Luna | 1.04% | 49.35% | 62,938 |
 | Gyrocopter | 1.03% | 51.79% | 30,190 |
 | Templar Assassin | 1.02% | 54.50% | 29,042 |
 | Drow Ranger | 1.01% | 45.74% | 84,386 |
 | Dragon Knight | 1.01% | 49.65% | 32,807 |
 | Primal Beast | 0.98% | 51.23% | 24,316 |
 | Pangolier | 0.87% | 54.24% | 22,800 |
 | Lich | 0.85% | 47.18% | 48,573 |
 | Slark | 0.84% | 51.20% | 53,323 |
 | Sand King | 0.74% | 46.86% | 33,337 |
 | Mars | 0.73% | 52.91% | 36,690 |
 | Dark Seer | 0.70% | 46.93% | 13,282 |
 | Hoodwink | 0.67% | 49.40% | 81,950 |
 | Mirana | 0.64% | 51.23% | 38,482 |
 | Queen of Pain | 0.59% | 52.37% | 33,014 |
 | Dawnbreaker | 0.58% | 49.90% | 27,605 |
 | Bounty Hunter | 0.58% | 49.64% | 50,658 |
 | Death Prophet | 0.55% | 47.60% | 23,007 |
 | Ursa | 0.54% | 50.51% | 41,228 |
 | Marci | 0.54% | 49.80% | 37,175 |
 | Enchantress | 0.50% | 54.62% | 22,595 |
 | Treant Protector | 0.46% | 47.61% | 21,082 |
 | Razor | 0.44% | 49.58% | 48,608 |
 | Muerta | 0.43% | 52.17% | 18,992 |
 | Nature's Prophet | 0.41% | 53.13% | 71,038 |
 | Warlock | 0.40% | 46.57% | 35,616 |
 | Shadow Fiend | 0.39% | 50.33% | 70,564 |
 | Elder Titan | 0.35% | 49.91% | 8,689 |
 | Sniper | 0.35% | 48.99% | 97,988 |
 | Tusk | 0.34% | 54.00% | 26,879 |
 | Chen | 0.33% | 55.07% | 5,671 |
 | Beastmaster | 0.28% | 53.58% | 6,493 |
 | Alchemist | 0.27% | 50.85% | 17,754 |
 | Snapfire | 0.26% | 53.41% | 31,117 |
 | Rubick | 0.25% | 54.07% | 64,011 |
 | Ogre Magi | 0.23% | 47.45% | 82,743 |
 | Spirit Breaker | 0.23% | 49.47% | 73,097 |
 | Vengeful Spirit | 0.21% | 47.67% | 76,463 |
 | Techies | 0.14% | 50.51% | 50,228 |
 | Undying | 0.07% | 47.16% | 37,423 |
 | Witch Doctor | 0.06% | 46.36% | 96,256 |
 | Naga Siren | 0.04% | 52.55% | 13,995 |
 | Lone Druid | 0.02% | 49.97% | 8,497 |
 | Outworld Destroyer | -0.02% | 48.80% | 29,770 |
 | Jakiro | -0.06% | 47.27% | 65,681 |
 | Riki | -0.10% | 48.35% | 44,002 |
 | Bristleback | -0.16% | 48.16% | 59,845 |
 | Lion | -0.20% | 52.64% | 111,896 |
 | Phantom Assassin | -0.25% | 51.61% | 91,824 |
 | Dazzle | -0.26% | 49.38% | 55,561 |
 | Morphling | -0.31% | 52.58% | 50,443 |
 | Pugna | -0.36% | 51.52% | 27,398 |
 | Shadow Shaman | -0.37% | 47.32% | 74,890 |
 | Silencer | -0.43% | 48.25% | 39,131 |
 | Skywrath Mage | -0.44% | 50.19% | 52,568 |
 | Bane | -0.47% | 49.44% | 29,643 |
 | Phantom Lancer | -0.49% | 48.24% | 35,042 |
 | Disruptor | -0.50% | 47.27% | 65,069 |
 | Venomancer | -0.52% | 46.95% | 54,614 |
 | Visage | -0.57% | 50.72% | 9,043 |
 | Nyx Assassin | -0.58% | 48.81% | 40,035 |
 | Leshrac | -0.61% | 45.75% | 33,119 |
 | Tiny | -0.62% | 53.27% | 34,361 |
 | Centaur Warrunner | -0.69% | 48.76% | 37,339 |
 | Bloodseeker | -0.73% | 48.39% | 27,332 |
 | Clockwerk | -0.76% | 51.07% | 30,886 |
 | Omniknight | -0.79% | 51.71% | 32,658 |
 | Axe | -0.79% | 46.86% | 90,766 |
 | Brewmaster | -0.81% | 50.60% | 9,595 |
 | Juggernaut | -0.81% | 50.34% | 62,408 |
 | Tidehunter | -0.83% | 51.00% | 23,852 |
 | Legion Commander | -0.87% | 50.47% | 71,192 |
 | Wraith King | -0.91% | 47.72% | 47,804 |
 | Necrophos | -0.95% | 48.12% | 55,678 |
 | Phoenix | -0.95% | 52.31% | 18,405 |
 | Pudge | -0.97% | 49.31% | 164,965 |
 | Meepo | -1.04% | 48.48% | 17,605 |
 | Grimstroke | -1.14% | 51.10% | 36,615 |
 | Clinkz | -1.19% | 49.29% | 40,928 |
 | Earth Spirit | -1.20% | 52.45% | 19,267 |
 | Zeus | -1.23% | 47.50% | 86,305 |
 | Lifestealer | -1.35% | 47.20% | 75,358 |
 | Storm Spirit | -1.44% | 53.27% | 27,333 |
 | Invoker | -1.49% | 54.22% | 86,161 |
 | Night Stalker | -1.55% | 49.66% | 25,377 |
 | Puck | -1.57% | 53.95% | 34,498 |
 | Tinker | -1.87% | 53.19% | 26,325 |
 | Spectre | -2.11% | 51.37% | 41,640 |
 | Abaddon | -2.14% | 46.81% | 42,982 |
 | Timbersaw | -2.38% | 52.23% | 46,448 |
| Void Spirit | -2.46% | 53.48% | 17,623 |
| Oracle | -2.49% | 50.96% | 33,470 |
| Arc Warden | -2.60% | 49.02% | 28,518 |
| Shadow Demon | -2.80% | 54.43% | 13,127 |
| Anti-Mage | -3.93% | 50.95% | 72,285 |
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