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 | |
|---|---|---|---|
 | Ancient Apparition | 2.85% | 45.13% |
 | Troll Warlord | 2.82% | 44.05% |
 | Magnus | 2.29% | 51.96% |
 | Monkey King | 2.08% | 50.50% |
 | Underlord | 2.07% | 43.45% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Oracle | 2.66% | 48.89% |
 | Anti-Mage | 2.62% | 54.76% |
 | Arc Warden | 2.33% | 47.49% |
 | Night Stalker | 2.17% | 49.10% |
 | Bloodseeker | 2.14% | 48.98% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Ancient Apparition | 2.85% | 45.13% | 22,126 |
| Troll Warlord | 2.82% | 44.05% | 25,676 |
| Magnus | 2.29% | 51.96% | 17,957 |
| Monkey King | 2.08% | 50.50% | 33,887 |
| Underlord | 2.07% | 43.45% | 18,423 |
 | Kunkka | 1.83% | 52.91% | 9,161 |
 | Earthshaker | 1.74% | 48.44% | 33,893 |
 | Marci | 1.68% | 48.45% | 18,105 |
 | Dark Willow | 1.66% | 48.46% | 21,487 |
 | Broodmother | 1.65% | 47.67% | 19,050 |
 | Winter Wyvern | 1.62% | 46.96% | 14,799 |
 | Viper | 1.55% | 51.03% | 16,432 |
 | Crystal Maiden | 1.53% | 47.03% | 38,393 |
 | Luna | 1.51% | 49.73% | 17,538 |
 | Doom | 1.50% | 50.07% | 12,198 |
 | Windranger | 1.44% | 47.46% | 39,293 |
 | Dragon Knight | 1.44% | 47.57% | 26,283 |
 | Razor | 1.43% | 49.00% | 15,382 |
 | Elder Titan | 1.38% | 46.60% | 7,952 |
 | Death Prophet | 1.35% | 50.86% | 6,999 |
 | Lich | 1.32% | 44.01% | 31,763 |
 | Sand King | 1.21% | 45.76% | 23,762 |
 | Batrider | 1.15% | 55.26% | 4,312 |
 | Techies | 1.14% | 51.55% | 27,589 |
 | Terrorblade | 1.09% | 53.49% | 10,198 |
 | Mars | 0.99% | 50.79% | 18,376 |
 | Enigma | 0.94% | 47.98% | 14,968 |
 | Sven | 0.93% | 46.19% | 24,449 |
 | Muerta | 0.93% | 51.09% | 9,553 |
 | Dawnbreaker | 0.86% | 48.02% | 10,967 |
 | Dazzle | 0.86% | 49.97% | 30,233 |
 | Queen of Pain | 0.79% | 50.51% | 19,528 |
 | Slardar | 0.79% | 49.66% | 22,833 |
 | Venomancer | 0.79% | 48.24% | 25,357 |
 | Huskar | 0.78% | 49.55% | 13,247 |
 | Pangolier | 0.76% | 53.25% | 10,965 |
 | Shadow Fiend | 0.76% | 47.18% | 73,303 |
 | Disruptor | 0.75% | 48.50% | 18,974 |
 | Lone Druid | 0.67% | 47.96% | 6,115 |
 | Gyrocopter | 0.67% | 51.28% | 15,704 |
 | Lina | 0.66% | 51.34% | 32,351 |
 | Phantom Assassin | 0.66% | 48.27% | 62,078 |
 | Alchemist | 0.64% | 48.69% | 13,858 |
 | Undying | 0.63% | 45.49% | 25,020 |
 | Mirana | 0.56% | 52.16% | 14,248 |
 | Slark | 0.54% | 49.97% | 27,391 |
 | Jakiro | 0.50% | 47.41% | 43,977 |
 | Bristleback | 0.50% | 50.56% | 20,192 |
 | Bounty Hunter | 0.49% | 47.72% | 19,976 |
 | Ogre Magi | 0.44% | 47.05% | 47,448 |
 | Primal Beast | 0.44% | 49.30% | 12,532 |
 | Tusk | 0.44% | 54.15% | 10,830 |
 | Beastmaster | 0.43% | 52.15% | 17,533 |
 | Omniknight | 0.41% | 50.45% | 6,016 |
 | Warlock | 0.35% | 44.34% | 28,695 |
 | Naga Siren | 0.33% | 51.06% | 6,443 |
 | Tiny | 0.33% | 47.18% | 66,047 |
 | Vengeful Spirit | 0.29% | 47.41% | 40,037 |
 | Medusa | 0.28% | 47.70% | 10,316 |
 | Leshrac | 0.28% | 46.84% | 9,964 |
 | Weaver | 0.20% | 48.17% | 42,630 |
 | Keeper of the Light | 0.15% | 52.76% | 8,215 |
 | Lycan | 0.14% | 49.50% | 9,295 |
 | Drow Ranger | 0.14% | 48.70% | 30,863 |
 | Enchantress | 0.09% | 52.71% | 10,884 |
 | Ember Spirit | 0.08% | 48.32% | 22,351 |
 | Nature's Prophet | 0.06% | 55.32% | 19,088 |
 | Pugna | 0.01% | 52.33% | 12,326 |
 | Witch Doctor | 0.01% | 47.85% | 55,141 |
 | Dark Seer | -0.04% | 44.92% | 23,082 |
 | Ursa | -0.07% | 48.41% | 40,977 |
 | Hoodwink | -0.08% | 49.75% | 56,547 |
 | Chaos Knight | -0.09% | 49.56% | 28,144 |
 | Sniper | -0.12% | 51.15% | 44,359 |
 | Faceless Void | -0.16% | 50.05% | 27,166 |
 | Grimstroke | -0.18% | 50.77% | 19,943 |
 | Outworld Destroyer | -0.18% | 47.24% | 17,025 |
 | Lion | -0.19% | 50.49% | 67,544 |
 | Tinker | -0.29% | 56.10% | 7,055 |
 | Silencer | -0.31% | 46.89% | 26,826 |
 | Visage | -0.36% | 48.16% | 6,694 |
 | Morphling | -0.39% | 57.14% | 18,312 |
 | Riki | -0.40% | 48.86% | 14,139 |
 | Brewmaster | -0.46% | 49.20% | 5,264 |
 | Bane | -0.50% | 51.26% | 12,144 |
 | Legion Commander | -0.60% | 47.75% | 46,618 |
 | Skywrath Mage | -0.62% | 48.03% | 25,857 |
 | Spirit Breaker | -0.64% | 47.58% | 49,175 |
 | Clockwerk | -0.65% | 47.67% | 17,727 |
 | Rubick | -0.66% | 50.88% | 55,168 |
 | Phantom Lancer | -0.67% | 46.78% | 32,177 |
 | Shadow Shaman | -0.72% | 47.67% | 41,620 |
 | Treant Protector | -0.73% | 48.42% | 16,791 |
 | Templar Assassin | -0.81% | 55.22% | 22,855 |
 | Axe | -0.85% | 47.05% | 51,307 |
 | Necrophos | -0.87% | 48.09% | 30,776 |
 | Meepo | -0.89% | 51.82% | 7,557 |
 | Snapfire | -0.96% | 52.54% | 28,916 |
 | Pudge | -0.97% | 49.56% | 97,655 |
 | Tidehunter | -0.98% | 51.01% | 14,009 |
 | Storm Spirit | -0.99% | 51.86% | 23,212 |
 | Zeus | -1.09% | 50.69% | 37,600 |
 | Centaur Warrunner | -1.12% | 48.58% | 22,041 |
 | Nyx Assassin | -1.15% | 50.01% | 26,394 |
 | Puck | -1.26% | 53.46% | 13,006 |
 | Timbersaw | -1.35% | 51.08% | 21,829 |
 | Wraith King | -1.40% | 46.25% | 39,170 |
 | Shadow Demon | -1.42% | 52.74% | 7,018 |
 | Phoenix | -1.49% | 50.66% | 23,377 |
 | Invoker | -1.52% | 54.42% | 43,438 |
 | Chen | -1.57% | 57.29% | 1,798 |
 | Earth Spirit | -1.59% | 53.88% | 8,035 |
 | Juggernaut | -1.70% | 49.25% | 48,198 |
 | Void Spirit | -1.75% | 50.32% | 14,981 |
 | Clinkz | -1.80% | 49.63% | 19,900 |
 | Abaddon | -1.80% | 46.63% | 15,788 |
 | Spectre | -1.81% | 53.11% | 16,782 |
 | Lifestealer | -1.88% | 50.65% | 23,256 |
| Bloodseeker | -2.14% | 48.98% | 11,749 |
| Night Stalker | -2.17% | 49.10% | 16,853 |
| Arc Warden | -2.33% | 47.49% | 15,918 |
| Anti-Mage | -2.62% | 54.76% | 33,817 |
| Oracle | -2.66% | 48.89% | 15,582 |
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