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 | 2.92% | 52.46% |
 | Ancient Apparition | 2.74% | 46.03% |
 | Underlord | 2.71% | 45.01% |
 | Broodmother | 2.70% | 55.21% |
 | Troll Warlord | 2.66% | 44.64% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.94% | 51.14% |
 | Arc Warden | 2.64% | 49.12% |
 | Shadow Demon | 2.61% | 54.36% |
 | Timbersaw | 2.49% | 52.42% |
 | Oracle | 2.49% | 51.03% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Monkey King | 2.92% | 52.46% | 44,899 |
| Ancient Apparition | 2.74% | 46.03% | 43,037 |
| Underlord | 2.71% | 45.01% | 18,602 |
| Broodmother | 2.70% | 55.21% | 15,706 |
| Troll Warlord | 2.66% | 44.64% | 40,208 |
 | Dark Willow | 2.27% | 48.81% | 29,369 |
 | Sven | 2.19% | 51.03% | 21,570 |
 | Windranger | 2.05% | 51.25% | 69,099 |
 | Crystal Maiden | 1.98% | 47.93% | 74,584 |
 | Lycan | 1.94% | 48.80% | 6,338 |
 | Keeper of the Light | 1.86% | 52.54% | 29,502 |
 | Winter Wyvern | 1.83% | 48.08% | 34,404 |
 | Batrider | 1.82% | 56.59% | 11,285 |
 | Magnus | 1.71% | 51.18% | 58,292 |
 | Earthshaker | 1.69% | 48.20% | 61,317 |
 | Huskar | 1.63% | 49.45% | 27,131 |
 | Doom | 1.61% | 50.16% | 24,594 |
 | Lina | 1.58% | 52.07% | 55,922 |
 | Terrorblade | 1.48% | 54.68% | 10,122 |
 | Ember Spirit | 1.43% | 52.33% | 21,075 |
 | Chaos Knight | 1.40% | 50.31% | 33,346 |
 | Viper | 1.37% | 46.39% | 47,717 |
 | Weaver | 1.35% | 51.26% | 45,120 |
 | Slardar | 1.20% | 45.55% | 64,227 |
 | Faceless Void | 1.20% | 51.60% | 59,866 |
 | Dragon Knight | 1.18% | 49.65% | 33,272 |
 | Kunkka | 1.09% | 46.76% | 42,341 |
 | Drow Ranger | 1.08% | 45.85% | 85,958 |
 | Enigma | 1.03% | 50.10% | 19,865 |
 | Templar Assassin | 0.98% | 54.55% | 29,649 |
 | Pangolier | 0.96% | 54.21% | 23,041 |
 | Slark | 0.95% | 51.24% | 54,194 |
 | Primal Beast | 0.95% | 51.39% | 24,304 |
 | Lich | 0.94% | 47.25% | 49,337 |
 | Gyrocopter | 0.93% | 52.02% | 30,467 |
 | Luna | 0.93% | 49.61% | 63,390 |
 | Dark Seer | 0.83% | 46.88% | 13,191 |
 | Mars | 0.81% | 52.94% | 37,460 |
 | Sand King | 0.81% | 46.86% | 33,316 |
 | Medusa | 0.79% | 47.26% | 25,498 |
 | Queen of Pain | 0.70% | 52.35% | 33,084 |
 | Warlock | 0.70% | 46.39% | 36,297 |
 | Hoodwink | 0.68% | 49.51% | 84,214 |
 | Beastmaster | 0.65% | 53.38% | 6,534 |
 | Dawnbreaker | 0.62% | 49.93% | 27,568 |
 | Marci | 0.61% | 49.81% | 38,027 |
 | Mirana | 0.61% | 51.35% | 38,282 |
 | Bounty Hunter | 0.58% | 49.75% | 50,983 |
 | Death Prophet | 0.54% | 47.75% | 22,941 |
 | Ursa | 0.50% | 50.66% | 41,779 |
 | Treant Protector | 0.46% | 47.68% | 21,427 |
 | Sniper | 0.42% | 49.03% | 99,827 |
 | Shadow Fiend | 0.41% | 50.42% | 71,638 |
 | Nature's Prophet | 0.38% | 53.19% | 71,686 |
 | Razor | 0.38% | 49.75% | 49,107 |
 | Naga Siren | 0.37% | 52.22% | 14,011 |
 | Enchantress | 0.35% | 54.83% | 22,766 |
 | Elder Titan | 0.33% | 50.03% | 8,681 |
 | Spirit Breaker | 0.31% | 49.50% | 74,426 |
 | Tusk | 0.31% | 54.13% | 27,010 |
 | Chen | 0.27% | 55.19% | 5,593 |
 | Ogre Magi | 0.21% | 47.60% | 83,579 |
 | Techies | 0.20% | 50.63% | 51,386 |
 | Snapfire | 0.20% | 53.57% | 31,220 |
 | Muerta | 0.14% | 52.52% | 19,334 |
 | Alchemist | 0.14% | 51.10% | 17,727 |
 | Undying | 0.11% | 47.26% | 37,904 |
 | Vengeful Spirit | 0.08% | 47.90% | 77,843 |
 | Lone Druid | 0.03% | 50.03% | 8,652 |
 | Witch Doctor | 0.02% | 46.52% | 98,304 |
 | Rubick | 0.01% | 54.42% | 65,981 |
 | Outworld Destroyer | -0.02% | 48.92% | 30,286 |
 | Dazzle | -0.06% | 49.27% | 56,544 |
 | Jakiro | -0.06% | 47.39% | 67,037 |
 | Riki | -0.12% | 48.47% | 44,687 |
 | Bristleback | -0.13% | 48.31% | 62,756 |
 | Morphling | -0.18% | 52.60% | 51,113 |
 | Phantom Assassin | -0.22% | 51.69% | 94,286 |
 | Lion | -0.28% | 52.80% | 113,139 |
 | Silencer | -0.35% | 48.25% | 39,851 |
 | Leshrac | -0.36% | 45.60% | 33,264 |
 | Pugna | -0.38% | 51.64% | 27,551 |
 | Shadow Shaman | -0.43% | 47.48% | 76,307 |
 | Bane | -0.44% | 49.44% | 30,083 |
 | Disruptor | -0.44% | 47.30% | 67,440 |
 | Phantom Lancer | -0.45% | 48.30% | 36,169 |
 | Nyx Assassin | -0.47% | 48.80% | 40,097 |
 | Venomancer | -0.60% | 47.10% | 55,827 |
 | Omniknight | -0.64% | 51.64% | 32,858 |
 | Skywrath Mage | -0.66% | 50.49% | 53,130 |
 | Tiny | -0.68% | 53.44% | 34,747 |
 | Centaur Warrunner | -0.71% | 48.90% | 37,864 |
 | Bloodseeker | -0.74% | 48.45% | 27,367 |
 | Juggernaut | -0.77% | 50.44% | 63,332 |
 | Visage | -0.78% | 50.97% | 9,183 |
 | Wraith King | -0.80% | 47.72% | 48,681 |
 | Tidehunter | -0.82% | 51.13% | 24,255 |
 | Clockwerk | -0.83% | 51.23% | 30,697 |
 | Grimstroke | -0.90% | 50.95% | 37,652 |
 | Axe | -0.90% | 47.09% | 92,891 |
 | Pudge | -0.95% | 49.42% | 168,991 |
 | Legion Commander | -0.96% | 50.65% | 73,125 |
 | Phoenix | -0.98% | 52.40% | 18,797 |
 | Necrophos | -1.05% | 48.36% | 56,479 |
 | Clinkz | -1.07% | 49.24% | 41,881 |
 | Brewmaster | -1.11% | 50.94% | 9,738 |
 | Zeus | -1.11% | 47.52% | 87,822 |
 | Storm Spirit | -1.20% | 53.13% | 27,839 |
 | Meepo | -1.20% | 48.71% | 18,119 |
 | Earth Spirit | -1.26% | 52.53% | 19,896 |
 | Lifestealer | -1.39% | 47.24% | 77,777 |
 | Invoker | -1.51% | 54.42% | 88,193 |
 | Puck | -1.55% | 54.03% | 34,943 |
 | Night Stalker | -1.71% | 49.89% | 26,843 |
 | Tinker | -1.81% | 53.12% | 27,885 |
 | Spectre | -1.95% | 51.34% | 42,175 |
 | Abaddon | -2.22% | 47.00% | 43,492 |
 | Void Spirit | -2.47% | 53.61% | 17,645 |
| Oracle | -2.49% | 51.03% | 33,914 |
| Timbersaw | -2.49% | 52.42% | 47,431 |
| Shadow Demon | -2.61% | 54.36% | 13,520 |
| Arc Warden | -2.64% | 49.12% | 29,127 |
| Anti-Mage | -3.94% | 51.14% | 73,883 |
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