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 | |
|---|---|---|---|
 | Troll Warlord | 3.85% | 46.92% |
 | Ancient Apparition | 3.32% | 45.94% |
 | Monkey King | 2.74% | 53.11% |
 | Faceless Void | 2.60% | 53.31% |
 | Underlord | 2.60% | 48.02% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Spectre | 3.23% | 51.87% |
 | Oracle | 2.51% | 50.71% |
 | Arc Warden | 2.31% | 53.25% |
 | Meepo | 2.27% | 54.07% |
 | Shadow Demon | 2.08% | 54.90% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Troll Warlord | 3.85% | 46.92% | 11,636 |
| Ancient Apparition | 3.32% | 45.94% | 21,401 |
| Monkey King | 2.74% | 53.11% | 21,617 |
| Faceless Void | 2.60% | 53.31% | 14,088 |
| Underlord | 2.60% | 48.02% | 6,149 |
 | Dragon Knight | 2.51% | 48.47% | 30,490 |
 | Earthshaker | 2.36% | 49.78% | 53,431 |
 | Kunkka | 2.18% | 51.32% | 8,468 |
 | Slardar | 2.17% | 49.56% | 16,598 |
 | Luna | 2.15% | 53.11% | 8,884 |
 | Windranger | 2.14% | 55.66% | 17,702 |
 | Dark Willow | 2.13% | 50.14% | 17,514 |
 | Crystal Maiden | 2.10% | 48.84% | 36,684 |
 | Shadow Fiend | 1.76% | 52.43% | 41,548 |
 | Sven | 1.69% | 53.83% | 6,710 |
 | Omniknight | 1.64% | 50.89% | 4,005 |
 | Magnus | 1.61% | 50.56% | 41,116 |
 | Mirana | 1.48% | 52.90% | 10,037 |
 | Slark | 1.47% | 50.38% | 26,554 |
 | Techies | 1.47% | 52.96% | 24,777 |
 | Marci | 1.45% | 50.94% | 22,112 |
 | Mars | 1.43% | 52.31% | 16,212 |
 | Keeper of the Light | 1.39% | 52.03% | 7,202 |
 | Doom | 1.33% | 53.12% | 14,278 |
 | Primal Beast | 1.33% | 53.13% | 7,372 |
 | Terrorblade | 1.30% | 53.55% | 10,592 |
 | Witch Doctor | 1.25% | 48.22% | 54,611 |
 | Sand King | 1.19% | 49.78% | 12,411 |
 | Muerta | 1.05% | 52.20% | 9,464 |
 | Lich | 1.03% | 45.32% | 64,580 |
 | Winter Wyvern | 1.03% | 49.06% | 12,534 |
 | Weaver | 1.00% | 51.58% | 16,120 |
 | Bane | 0.99% | 50.51% | 5,957 |
 | Bristleback | 0.97% | 50.34% | 35,054 |
 | Dazzle | 0.95% | 51.73% | 29,895 |
 | Enigma | 0.86% | 50.40% | 11,683 |
 | Hoodwink | 0.86% | 54.16% | 27,498 |
 | Viper | 0.86% | 50.75% | 20,596 |
 | Outworld Destroyer | 0.84% | 48.38% | 14,902 |
 | Drow Ranger | 0.82% | 50.14% | 35,727 |
 | Disruptor | 0.81% | 49.87% | 15,179 |
 | Templar Assassin | 0.81% | 56.17% | 15,638 |
 | Venomancer | 0.79% | 51.71% | 25,192 |
 | Death Prophet | 0.73% | 51.31% | 7,008 |
 | Ogre Magi | 0.72% | 49.46% | 45,894 |
 | Bounty Hunter | 0.71% | 49.32% | 21,223 |
 | Treant Protector | 0.70% | 52.40% | 9,000 |
 | Phantom Lancer | 0.69% | 54.02% | 13,046 |
 | Sniper | 0.62% | 52.09% | 53,969 |
 | Medusa | 0.61% | 48.43% | 15,079 |
 | Lina | 0.61% | 49.82% | 60,085 |
 | Ursa | 0.57% | 51.93% | 25,404 |
 | Gyrocopter | 0.55% | 52.75% | 11,201 |
 | Vengeful Spirit | 0.53% | 49.84% | 21,020 |
 | Batrider | 0.50% | 56.89% | 4,992 |
 | Chaos Knight | 0.48% | 51.28% | 11,397 |
 | Jakiro | 0.47% | 50.27% | 34,106 |
 | Tusk | 0.40% | 54.52% | 11,623 |
 | Snapfire | 0.36% | 54.85% | 9,662 |
 | Leshrac | 0.32% | 51.32% | 5,655 |
 | Lone Druid | 0.29% | 49.19% | 5,786 |
 | Undying | 0.28% | 49.36% | 21,420 |
 | Ember Spirit | 0.28% | 51.64% | 13,528 |
 | Elder Titan | 0.16% | 49.10% | 4,320 |
 | Riki | 0.14% | 50.41% | 17,799 |
 | Razor | 0.14% | 50.15% | 14,372 |
 | Phantom Assassin | 0.11% | 50.86% | 78,970 |
 | Beastmaster | 0.07% | 54.08% | 14,828 |
 | Shadow Shaman | 0.06% | 48.61% | 44,779 |
 | Warlock | 0.05% | 47.91% | 21,730 |
 | Tiny | -0.04% | 52.83% | 25,207 |
 | Rubick | -0.07% | 53.99% | 45,487 |
 | Pangolier | -0.08% | 55.20% | 6,960 |
 | Ringmaster | -0.14% | 53.64% | 7,983 |
 | Broodmother | -0.17% | 49.73% | 15,588 |
 | Huskar | -0.19% | 52.73% | 16,915 |
 | Spirit Breaker | -0.20% | 50.48% | 36,226 |
 | Axe | -0.20% | 49.30% | 52,043 |
 | Dark Seer | -0.23% | 51.16% | 3,964 |
 | Lion | -0.24% | 51.81% | 80,849 |
 | Dawnbreaker | -0.24% | 49.12% | 24,899 |
 | Alchemist | -0.32% | 51.57% | 22,338 |
 | Legion Commander | -0.33% | 48.79% | 51,293 |
 | Tinker | -0.34% | 53.17% | 12,103 |
 | Kez | -0.38% | 51.82% | 16,973 |
 | Naga Siren | -0.48% | 55.97% | 3,039 |
 | Clinkz | -0.49% | 51.18% | 11,392 |
 | Timbersaw | -0.63% | 53.08% | 23,077 |
 | Morphling | -0.67% | 53.86% | 34,253 |
 | Grimstroke | -0.69% | 52.29% | 15,547 |
 | Silencer | -0.78% | 48.80% | 25,633 |
 | Necrophos | -0.78% | 49.47% | 32,131 |
 | Brewmaster | -0.83% | 52.53% | 2,772 |
 | Queen of Pain | -0.84% | 52.89% | 32,366 |
 | Clockwerk | -0.86% | 49.08% | 23,372 |
 | Nature's Prophet | -0.87% | 56.36% | 22,876 |
 | Juggernaut | -0.95% | 50.48% | 40,549 |
 | Phoenix | -0.98% | 51.72% | 20,135 |
 | Nyx Assassin | -1.09% | 51.55% | 27,592 |
 | Abaddon | -1.16% | 45.93% | 32,583 |
 | Earth Spirit | -1.17% | 53.35% | 11,243 |
 | Enchantress | -1.19% | 55.12% | 8,619 |
 | Tidehunter | -1.21% | 49.98% | 20,952 |
 | Invoker | -1.22% | 53.94% | 53,851 |
 | Lycan | -1.25% | 53.69% | 12,358 |
 | Centaur Warrunner | -1.29% | 51.90% | 13,552 |
 | Wraith King | -1.39% | 48.84% | 27,697 |
 | Pudge | -1.40% | 52.15% | 83,602 |
 | Pugna | -1.40% | 53.95% | 11,862 |
 | Visage | -1.44% | 50.12% | 6,873 |
 | Void Spirit | -1.49% | 51.40% | 9,081 |
 | Storm Spirit | -1.51% | 52.41% | 20,233 |
 | Puck | -1.58% | 53.96% | 20,746 |
 | Chen | -1.60% | 59.66% | 1,636 |
 | Anti-Mage | -1.70% | 53.64% | 36,549 |
 | Skywrath Mage | -1.71% | 52.89% | 19,456 |
 | Night Stalker | -1.80% | 50.20% | 18,560 |
 | Zeus | -1.91% | 51.50% | 46,325 |
 | Bloodseeker | -1.94% | 47.33% | 38,835 |
 | Lifestealer | -1.98% | 49.71% | 30,678 |
| Shadow Demon | -2.08% | 54.90% | 8,729 |
| Meepo | -2.27% | 54.07% | 6,238 |
| Arc Warden | -2.31% | 53.25% | 13,477 |
| Oracle | -2.51% | 50.71% | 12,235 |
| Spectre | -3.23% | 51.87% | 47,039 |
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