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 | 2.94% | 52.53% |
 | Ancient Apparition | 2.73% | 46.16% |
 | Broodmother | 2.71% | 55.05% |
 | Underlord | 2.69% | 45.17% |
 | Troll Warlord | 2.56% | 44.84% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.93% | 51.25% |
 | Arc Warden | 2.58% | 49.11% |
 | Shadow Demon | 2.54% | 54.40% |
 | Oracle | 2.50% | 51.06% |
 | Timbersaw | 2.48% | 52.50% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.94% | 52.53% | 43,365 |
| Ancient Apparition | 2.73% | 46.16% | 41,989 |
| Broodmother | 2.71% | 55.05% | 15,076 |
| Underlord | 2.69% | 45.17% | 17,675 |
| Troll Warlord | 2.56% | 44.84% | 39,372 |
 | Dark Willow | 2.29% | 48.91% | 28,788 |
 | Sven | 2.24% | 51.10% | 20,900 |
 | Windranger | 2.09% | 51.33% | 66,778 |
 | Crystal Maiden | 2.04% | 48.00% | 72,637 |
 | Lycan | 1.99% | 48.78% | 6,095 |
 | Keeper of the Light | 1.92% | 52.50% | 28,430 |
 | Winter Wyvern | 1.84% | 48.19% | 33,383 |
 | Magnus | 1.74% | 51.25% | 56,784 |
 | Batrider | 1.70% | 56.75% | 10,768 |
 | Huskar | 1.67% | 49.52% | 26,331 |
 | Earthshaker | 1.66% | 48.35% | 59,788 |
 | Doom | 1.58% | 50.32% | 24,002 |
 | Lina | 1.51% | 52.28% | 54,727 |
 | Chaos Knight | 1.49% | 50.33% | 32,025 |
 | Terrorblade | 1.49% | 54.83% | 9,849 |
 | Ember Spirit | 1.47% | 52.36% | 20,159 |
 | Weaver | 1.43% | 51.27% | 43,233 |
 | Viper | 1.37% | 46.53% | 46,350 |
 | Dragon Knight | 1.28% | 49.69% | 32,338 |
 | Faceless Void | 1.24% | 51.71% | 58,187 |
 | Slardar | 1.24% | 45.62% | 62,632 |
 | Kunkka | 1.13% | 46.84% | 41,319 |
 | Drow Ranger | 1.08% | 46.00% | 83,774 |
 | Enigma | 1.06% | 50.19% | 19,358 |
 | Pangolier | 1.01% | 54.21% | 22,294 |
 | Gyrocopter | 0.99% | 52.07% | 29,420 |
 | Slark | 0.96% | 51.34% | 52,714 |
 | Primal Beast | 0.95% | 51.47% | 23,334 |
 | Luna | 0.92% | 49.75% | 61,557 |
 | Templar Assassin | 0.86% | 54.73% | 28,870 |
 | Lich | 0.86% | 47.46% | 47,940 |
 | Medusa | 0.78% | 47.36% | 24,472 |
 | Beastmaster | 0.75% | 53.30% | 6,250 |
 | Mars | 0.74% | 53.10% | 36,745 |
 | Hoodwink | 0.74% | 49.58% | 82,338 |
 | Bounty Hunter | 0.70% | 49.74% | 49,078 |
 | Queen of Pain | 0.69% | 52.47% | 31,738 |
 | Dawnbreaker | 0.67% | 50.00% | 26,351 |
 | Sand King | 0.64% | 47.13% | 32,019 |
 | Dark Seer | 0.62% | 47.21% | 12,615 |
 | Marci | 0.61% | 49.86% | 36,941 |
 | Warlock | 0.58% | 46.61% | 35,163 |
 | Mirana | 0.58% | 51.49% | 36,476 |
 | Death Prophet | 0.57% | 47.84% | 22,048 |
 | Ursa | 0.50% | 50.74% | 40,708 |
 | Treant Protector | 0.49% | 47.73% | 20,828 |
 | Enchantress | 0.47% | 54.79% | 21,913 |
 | Shadow Fiend | 0.46% | 50.51% | 69,774 |
 | Razor | 0.43% | 49.84% | 47,689 |
 | Nature's Prophet | 0.40% | 53.26% | 69,216 |
 | Sniper | 0.40% | 49.18% | 97,344 |
 | Lone Druid | 0.39% | 49.68% | 8,391 |
 | Naga Siren | 0.36% | 52.30% | 13,471 |
 | Tusk | 0.35% | 54.13% | 26,009 |
 | Chen | 0.32% | 55.07% | 5,310 |
 | Snapfire | 0.28% | 53.58% | 30,099 |
 | Spirit Breaker | 0.25% | 49.67% | 72,426 |
 | Elder Titan | 0.22% | 50.21% | 8,259 |
 | Undying | 0.21% | 47.30% | 36,878 |
 | Ogre Magi | 0.15% | 47.77% | 80,754 |
 | Techies | 0.14% | 50.82% | 50,361 |
 | Muerta | 0.09% | 52.72% | 18,801 |
 | Vengeful Spirit | 0.05% | 48.03% | 75,548 |
 | Outworld Destroyer | 0.05% | 48.99% | 29,562 |
 | Alchemist | 0.04% | 51.32% | 16,926 |
 | Witch Doctor | 0.03% | 46.65% | 96,269 |
 | Dazzle | 0.01% | 49.29% | 54,937 |
 | Rubick | -0.05% | 54.61% | 65,124 |
 | Riki | -0.13% | 48.58% | 43,092 |
 | Jakiro | -0.15% | 47.60% | 65,391 |
 | Bristleback | -0.16% | 48.46% | 61,525 |
 | Phantom Assassin | -0.18% | 51.76% | 92,303 |
 | Morphling | -0.20% | 52.73% | 50,003 |
 | Lion | -0.25% | 52.89% | 110,098 |
 | Leshrac | -0.33% | 45.69% | 32,384 |
 | Disruptor | -0.36% | 47.33% | 66,011 |
 | Pugna | -0.40% | 51.77% | 26,781 |
 | Silencer | -0.43% | 48.45% | 38,658 |
 | Nyx Assassin | -0.44% | 48.87% | 38,509 |
 | Bane | -0.45% | 49.51% | 29,194 |
 | Shadow Shaman | -0.48% | 47.65% | 74,523 |
 | Phantom Lancer | -0.51% | 48.47% | 35,348 |
 | Tiny | -0.61% | 53.49% | 33,935 |
 | Skywrath Mage | -0.61% | 50.54% | 51,609 |
 | Venomancer | -0.62% | 47.22% | 54,132 |
 | Bloodseeker | -0.68% | 48.48% | 26,091 |
 | Clockwerk | -0.69% | 51.18% | 29,093 |
 | Tidehunter | -0.73% | 51.15% | 23,474 |
 | Omniknight | -0.73% | 51.83% | 31,772 |
 | Wraith King | -0.74% | 47.77% | 47,457 |
 | Juggernaut | -0.76% | 50.54% | 61,614 |
 | Centaur Warrunner | -0.77% | 49.05% | 36,650 |
 | Grimstroke | -0.90% | 51.07% | 37,103 |
 | Pudge | -0.94% | 49.53% | 165,506 |
 | Axe | -0.95% | 47.26% | 90,802 |
 | Legion Commander | -0.98% | 50.80% | 71,511 |
 | Phoenix | -1.03% | 52.56% | 18,325 |
 | Visage | -1.03% | 51.31% | 8,916 |
 | Brewmaster | -1.06% | 50.93% | 9,503 |
 | Clinkz | -1.08% | 49.35% | 40,675 |
 | Necrophos | -1.11% | 48.54% | 54,719 |
 | Zeus | -1.17% | 47.68% | 85,653 |
 | Earth Spirit | -1.19% | 52.56% | 19,600 |
 | Meepo | -1.24% | 48.84% | 17,768 |
 | Storm Spirit | -1.25% | 53.27% | 26,989 |
 | Lifestealer | -1.38% | 47.32% | 76,195 |
 | Invoker | -1.42% | 54.47% | 86,881 |
 | Puck | -1.49% | 54.09% | 34,202 |
 | Night Stalker | -1.66% | 49.96% | 26,470 |
 | Tinker | -1.79% | 53.15% | 27,562 |
 | Spectre | -1.93% | 51.43% | 40,661 |
 | Abaddon | -2.26% | 47.12% | 42,104 |
 | Void Spirit | -2.45% | 53.75% | 17,141 |
| Timbersaw | -2.48% | 52.50% | 46,337 |
| Oracle | -2.50% | 51.06% | 32,979 |
| Shadow Demon | -2.54% | 54.40% | 13,379 |
| Arc Warden | -2.58% | 49.11% | 28,549 |
| Anti-Mage | -3.93% | 51.25% | 72,428 |
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