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 | 2.91% | 52.08% |
 | Ancient Apparition | 2.82% | 45.88% |
 | Troll Warlord | 2.77% | 44.88% |
 | Terrorblade | 2.65% | 53.91% |
 | Broodmother | 2.63% | 52.11% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.60% | 52.36% |
 | Arc Warden | 2.88% | 50.21% |
 | Oracle | 2.50% | 50.35% |
 | Timbersaw | 2.40% | 53.21% |
 | Void Spirit | 2.35% | 50.83% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.91% | 52.08% | 39,521 |
| Ancient Apparition | 2.82% | 45.88% | 44,169 |
| Troll Warlord | 2.77% | 44.88% | 36,686 |
| Terrorblade | 2.65% | 53.91% | 10,682 |
| Broodmother | 2.63% | 52.11% | 14,237 |
 | Dark Willow | 2.53% | 47.40% | 33,929 |
 | Underlord | 2.32% | 45.88% | 15,614 |
 | Batrider | 2.20% | 55.49% | 10,308 |
 | Lycan | 2.09% | 50.41% | 9,807 |
 | Dragon Knight | 1.86% | 47.73% | 36,699 |
 | Winter Wyvern | 1.86% | 47.26% | 30,818 |
 | Earthshaker | 1.84% | 48.97% | 59,671 |
 | Doom | 1.83% | 50.97% | 23,579 |
 | Windranger | 1.83% | 50.99% | 61,530 |
 | Crystal Maiden | 1.80% | 47.83% | 69,702 |
 | Sven | 1.79% | 52.28% | 19,371 |
 | Lina | 1.63% | 52.58% | 54,276 |
 | Keeper of the Light | 1.61% | 52.56% | 24,098 |
 | Magnus | 1.58% | 52.44% | 51,257 |
 | Slardar | 1.43% | 46.07% | 61,933 |
 | Pangolier | 1.32% | 55.09% | 19,654 |
 | Viper | 1.30% | 48.36% | 42,527 |
 | Medusa | 1.24% | 47.14% | 21,050 |
 | Primal Beast | 1.18% | 50.70% | 21,433 |
 | Ember Spirit | 1.18% | 51.40% | 18,717 |
 | Weaver | 1.12% | 49.94% | 43,128 |
 | Gyrocopter | 1.11% | 51.89% | 28,390 |
 | Huskar | 1.09% | 51.17% | 24,595 |
 | Marci | 1.08% | 50.40% | 36,741 |
 | Shadow Fiend | 1.07% | 49.73% | 83,529 |
 | Death Prophet | 1.04% | 49.98% | 19,198 |
 | Dark Seer | 1.03% | 47.18% | 12,954 |
 | Luna | 1.00% | 50.13% | 51,639 |
 | Drow Ranger | 0.97% | 47.37% | 77,069 |
 | Kunkka | 0.92% | 48.81% | 35,523 |
 | Razor | 0.91% | 50.03% | 42,081 |
 | Enigma | 0.90% | 49.54% | 19,222 |
 | Lich | 0.89% | 46.79% | 47,911 |
 | Chaos Knight | 0.87% | 49.05% | 32,064 |
 | Sand King | 0.83% | 46.99% | 31,649 |
 | Lone Druid | 0.78% | 49.50% | 8,638 |
 | Mars | 0.78% | 53.32% | 36,691 |
 | Faceless Void | 0.72% | 52.19% | 54,446 |
 | Hoodwink | 0.64% | 50.07% | 81,466 |
 | Mirana | 0.64% | 52.38% | 30,110 |
 | Slark | 0.60% | 52.31% | 49,198 |
 | Undying | 0.60% | 46.81% | 38,893 |
 | Dawnbreaker | 0.59% | 50.41% | 22,548 |
 | Ursa | 0.57% | 49.95% | 43,787 |
 | Beastmaster | 0.55% | 54.43% | 5,765 |
 | Techies | 0.55% | 52.25% | 52,866 |
 | Bounty Hunter | 0.51% | 49.25% | 46,440 |
 | Templar Assassin | 0.51% | 51.32% | 37,901 |
 | Ogre Magi | 0.50% | 47.92% | 77,017 |
 | Treant Protector | 0.49% | 47.92% | 22,195 |
 | Tusk | 0.46% | 54.97% | 22,666 |
 | Dazzle | 0.45% | 49.75% | 53,276 |
 | Naga Siren | 0.45% | 51.81% | 11,562 |
 | Vengeful Spirit | 0.44% | 48.12% | 70,225 |
 | Warlock | 0.38% | 45.94% | 40,845 |
 | Outworld Destroyer | 0.31% | 48.38% | 29,161 |
 | Queen of Pain | 0.27% | 52.90% | 29,559 |
 | Sniper | 0.22% | 50.76% | 91,276 |
 | Chen | 0.17% | 55.60% | 4,691 |
 | Alchemist | 0.15% | 50.86% | 16,563 |
 | Snapfire | 0.14% | 54.50% | 27,266 |
 | Jakiro | 0.10% | 48.19% | 64,393 |
 | Enchantress | 0.09% | 55.11% | 20,949 |
 | Disruptor | 0.08% | 47.90% | 64,114 |
 | Phantom Assassin | 0.03% | 52.44% | 86,724 |
 | Omniknight | 0.00% | 51.85% | 26,231 |
 | Bristleback | -0.05% | 50.24% | 56,867 |
 | Venomancer | -0.05% | 47.24% | 58,762 |
 | Muerta | -0.06% | 53.30% | 19,132 |
 | Morphling | -0.08% | 54.08% | 40,993 |
 | Spirit Breaker | -0.11% | 49.37% | 73,068 |
 | Rubick | -0.13% | 54.03% | 68,906 |
 | Elder Titan | -0.15% | 50.35% | 7,805 |
 | Witch Doctor | -0.21% | 47.52% | 93,991 |
 | Nature's Prophet | -0.23% | 54.55% | 56,340 |
 | Lion | -0.23% | 52.58% | 109,682 |
 | Leshrac | -0.24% | 45.75% | 30,246 |
 | Grimstroke | -0.29% | 50.92% | 37,931 |
 | Phoenix | -0.38% | 50.18% | 21,635 |
 | Nyx Assassin | -0.47% | 49.72% | 37,193 |
 | Phantom Lancer | -0.48% | 48.10% | 36,413 |
 | Riki | -0.48% | 49.23% | 36,351 |
 | Shadow Shaman | -0.48% | 46.39% | 81,805 |
 | Pugna | -0.52% | 52.67% | 26,038 |
 | Tiny | -0.52% | 50.86% | 40,606 |
 | Clockwerk | -0.52% | 50.33% | 24,820 |
 | Wraith King | -0.55% | 45.52% | 59,999 |
 | Tidehunter | -0.59% | 52.32% | 24,192 |
 | Silencer | -0.60% | 48.38% | 44,581 |
 | Bane | -0.68% | 50.32% | 27,135 |
 | Skywrath Mage | -0.71% | 49.93% | 46,908 |
 | Legion Commander | -0.77% | 48.66% | 81,087 |
 | Axe | -0.89% | 46.22% | 96,147 |
 | Centaur Warrunner | -0.90% | 48.52% | 39,350 |
 | Meepo | -0.90% | 48.24% | 18,269 |
 | Earth Spirit | -0.90% | 53.14% | 20,353 |
 | Pudge | -1.03% | 49.39% | 166,205 |
 | Zeus | -1.08% | 47.53% | 87,772 |
 | Clinkz | -1.08% | 49.48% | 41,595 |
 | Visage | -1.10% | 51.39% | 8,778 |
 | Juggernaut | -1.11% | 48.59% | 75,607 |
 | Tinker | -1.22% | 54.63% | 27,597 |
 | Bloodseeker | -1.23% | 50.31% | 21,340 |
 | Invoker | -1.26% | 54.70% | 83,067 |
 | Puck | -1.31% | 54.34% | 30,737 |
 | Night Stalker | -1.37% | 49.29% | 32,071 |
 | Storm Spirit | -1.49% | 51.47% | 34,520 |
 | Lifestealer | -1.50% | 48.32% | 73,155 |
 | Brewmaster | -1.58% | 51.63% | 8,492 |
 | Spectre | -1.67% | 52.18% | 35,122 |
 | Necrophos | -1.75% | 48.82% | 51,325 |
 | Shadow Demon | -1.84% | 54.04% | 15,826 |
 | Abaddon | -2.25% | 47.33% | 38,475 |
| Void Spirit | -2.35% | 50.83% | 21,549 |
| Timbersaw | -2.40% | 53.21% | 44,753 |
| Oracle | -2.50% | 50.35% | 30,700 |
| Arc Warden | -2.88% | 50.21% | 25,380 |
| Anti-Mage | -3.60% | 52.36% | 69,293 |
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