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 | 3.31% | 45.83% |
 | Ancient Apparition | 2.97% | 44.24% |
 | Lone Druid | 2.92% | 47.14% |
 | Pangolier | 2.39% | 52.14% |
 | Monkey King | 2.38% | 51.31% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Arc Warden | 3.12% | 54.26% |
 | Oracle | 3.07% | 51.03% |
 | Shadow Demon | 3.06% | 55.71% |
 | Spectre | 2.45% | 51.14% |
 | Void Spirit | 2.27% | 52.50% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Troll Warlord | 3.31% | 45.83% | 8,172 |
| Ancient Apparition | 2.97% | 44.24% | 25,994 |
| Lone Druid | 2.92% | 47.14% | 2,503 |
| Pangolier | 2.39% | 52.14% | 4,576 |
| Monkey King | 2.38% | 51.31% | 16,368 |
 | Dark Willow | 2.35% | 49.09% | 9,448 |
 | Underlord | 2.34% | 48.31% | 4,573 |
 | Crystal Maiden | 2.18% | 48.45% | 19,166 |
 | Broodmother | 2.11% | 48.64% | 4,408 |
 | Magnus | 2.07% | 50.43% | 24,325 |
 | Bristleback | 1.96% | 48.79% | 13,561 |
 | Dark Seer | 1.82% | 46.37% | 6,125 |
 | Lich | 1.75% | 47.47% | 16,825 |
 | Sven | 1.74% | 49.52% | 9,588 |
 | Slardar | 1.70% | 47.86% | 11,192 |
 | Kunkka | 1.70% | 49.35% | 8,704 |
 | Razor | 1.65% | 48.89% | 9,888 |
 | Earthshaker | 1.65% | 48.30% | 29,834 |
 | Doom | 1.60% | 53.09% | 6,551 |
 | Dragon Knight | 1.59% | 48.75% | 12,042 |
 | Viper | 1.47% | 50.94% | 11,811 |
 | Mars | 1.46% | 50.61% | 13,510 |
 | Terrorblade | 1.45% | 50.67% | 10,796 |
 | Dazzle | 1.23% | 49.61% | 11,607 |
 | Shadow Fiend | 1.20% | 50.62% | 26,383 |
 | Witch Doctor | 1.18% | 46.98% | 37,182 |
 | Lina | 1.14% | 54.65% | 11,804 |
 | Windranger | 1.14% | 51.68% | 20,615 |
 | Drow Ranger | 1.09% | 48.94% | 20,977 |
 | Luna | 1.08% | 51.14% | 6,359 |
 | Bounty Hunter | 0.98% | 50.14% | 9,377 |
 | Venomancer | 0.98% | 50.20% | 13,465 |
 | Elder Titan | 0.94% | 48.01% | 2,683 |
 | Enigma | 0.90% | 49.64% | 6,648 |
 | Ursa | 0.81% | 49.94% | 19,871 |
 | Techies | 0.77% | 52.41% | 14,410 |
 | Lycan | 0.76% | 50.92% | 2,773 |
 | Marci | 0.75% | 52.88% | 10,778 |
 | Snapfire | 0.71% | 52.09% | 7,040 |
 | Slark | 0.69% | 49.30% | 23,245 |
 | Gyrocopter | 0.69% | 50.96% | 7,799 |
 | Weaver | 0.68% | 49.97% | 20,854 |
 | Disruptor | 0.67% | 48.14% | 10,911 |
 | Leshrac | 0.67% | 49.28% | 6,254 |
 | Vengeful Spirit | 0.66% | 46.97% | 12,781 |
 | Outworld Destroyer | 0.65% | 47.32% | 13,579 |
 | Skywrath Mage | 0.61% | 49.41% | 14,267 |
 | Chaos Knight | 0.53% | 49.14% | 7,670 |
 | Phantom Assassin | 0.52% | 53.97% | 35,364 |
 | Keeper of the Light | 0.48% | 52.18% | 8,279 |
 | Jakiro | 0.48% | 49.19% | 30,136 |
 | Death Prophet | 0.44% | 50.62% | 5,763 |
 | Sand King | 0.41% | 50.51% | 9,283 |
 | Primal Beast | 0.41% | 52.82% | 3,796 |
 | Riki | 0.41% | 50.48% | 10,825 |
 | Timbersaw | 0.27% | 53.15% | 8,945 |
 | Batrider | 0.24% | 54.53% | 1,900 |
 | Hoodwink | 0.23% | 52.86% | 12,432 |
 | Meepo | 0.23% | 48.29% | 4,817 |
 | Muerta | 0.23% | 52.03% | 7,377 |
 | Brewmaster | 0.22% | 52.12% | 1,819 |
 | Mirana | 0.21% | 49.11% | 8,153 |
 | Shadow Shaman | 0.18% | 47.73% | 31,261 |
 | Ogre Magi | 0.13% | 49.68% | 25,857 |
 | Tusk | 0.09% | 53.24% | 7,459 |
 | Sniper | 0.08% | 50.96% | 35,299 |
 | Tiny | 0.07% | 53.64% | 15,971 |
 | Axe | 0.05% | 48.85% | 28,278 |
 | Winter Wyvern | 0.03% | 47.81% | 10,734 |
 | Huskar | 0.03% | 50.64% | 12,862 |
 | Kez | 0.02% | 54.31% | 9,727 |
 | Necrophos | -0.01% | 48.59% | 23,307 |
 | Spirit Breaker | -0.04% | 50.14% | 18,801 |
 | Phantom Lancer | -0.04% | 52.22% | 7,197 |
 | Legion Commander | -0.08% | 48.80% | 29,919 |
 | Bloodseeker | -0.10% | 49.32% | 6,074 |
 | Omniknight | -0.11% | 51.96% | 2,931 |
 | Nyx Assassin | -0.11% | 49.45% | 7,857 |
 | Templar Assassin | -0.14% | 49.79% | 25,118 |
 | Undying | -0.16% | 48.82% | 14,290 |
 | Faceless Void | -0.26% | 52.70% | 10,942 |
 | Bane | -0.28% | 51.07% | 4,120 |
 | Lion | -0.28% | 50.80% | 49,645 |
 | Beastmaster | -0.29% | 53.05% | 11,479 |
 | Ember Spirit | -0.30% | 51.81% | 10,685 |
 | Warlock | -0.31% | 48.21% | 16,761 |
 | Pudge | -0.35% | 50.07% | 54,477 |
 | Morphling | -0.51% | 49.64% | 22,680 |
 | Earth Spirit | -0.59% | 51.96% | 4,001 |
 | Enchantress | -0.60% | 52.71% | 4,181 |
 | Grimstroke | -0.81% | 51.35% | 9,140 |
 | Phoenix | -0.86% | 50.24% | 8,282 |
 | Treant Protector | -0.95% | 52.63% | 5,810 |
 | Silencer | -0.97% | 49.80% | 21,048 |
 | Medusa | -0.98% | 48.63% | 20,320 |
 | Tidehunter | -1.00% | 49.92% | 16,713 |
 | Queen of Pain | -1.01% | 51.75% | 21,569 |
 | Pugna | -1.06% | 52.61% | 7,236 |
 | Alchemist | -1.12% | 51.13% | 7,813 |
 | Naga Siren | -1.12% | 54.19% | 2,305 |
 | Ringmaster | -1.13% | 53.26% | 10,306 |
 | Rubick | -1.17% | 53.24% | 28,694 |
 | Dawnbreaker | -1.27% | 50.36% | 10,306 |
 | Clockwerk | -1.38% | 49.45% | 9,567 |
 | Abaddon | -1.39% | 49.73% | 11,877 |
 | Invoker | -1.39% | 50.57% | 42,901 |
 | Nature's Prophet | -1.39% | 54.07% | 26,443 |
 | Clinkz | -1.41% | 50.44% | 9,249 |
 | Chen | -1.41% | 57.63% | 970 |
 | Tinker | -1.59% | 51.32% | 19,758 |
 | Juggernaut | -1.65% | 48.87% | 25,987 |
 | Centaur Warrunner | -1.75% | 51.30% | 8,197 |
 | Storm Spirit | -1.76% | 53.14% | 14,690 |
 | Anti-Mage | -1.86% | 50.74% | 25,509 |
 | Night Stalker | -1.87% | 51.65% | 10,772 |
 | Wraith King | -1.93% | 44.87% | 30,869 |
 | Puck | -1.95% | 52.45% | 13,697 |
 | Lifestealer | -1.99% | 49.36% | 18,544 |
 | Zeus | -2.06% | 52.21% | 23,119 |
 | Visage | -2.20% | 51.09% | 3,247 |
| Void Spirit | -2.27% | 52.50% | 4,522 |
| Spectre | -2.45% | 51.14% | 14,082 |
| Shadow Demon | -3.06% | 55.71% | 3,414 |
| Oracle | -3.07% | 51.03% | 7,717 |
| Arc Warden | -3.12% | 54.26% | 5,359 |
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