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 | |
|---|---|---|---|
 | Underlord | 2.78% | 44.80% |
 | Monkey King | 2.78% | 52.58% |
 | Ancient Apparition | 2.76% | 45.95% |
 | Troll Warlord | 2.66% | 44.54% |
 | Broodmother | 2.53% | 55.48% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.93% | 50.92% |
 | Shadow Demon | 2.90% | 54.57% |
 | Oracle | 2.64% | 51.11% |
 | Arc Warden | 2.57% | 49.04% |
 | Void Spirit | 2.50% | 53.47% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Underlord | 2.78% | 44.80% | 18,313 |
| Monkey King | 2.78% | 52.58% | 43,831 |
| Ancient Apparition | 2.76% | 45.95% | 41,523 |
| Troll Warlord | 2.66% | 44.54% | 38,667 |
| Broodmother | 2.53% | 55.48% | 15,031 |
 | Sven | 2.39% | 50.72% | 21,081 |
 | Dark Willow | 2.20% | 48.91% | 27,941 |
 | Crystal Maiden | 2.15% | 47.66% | 71,952 |
 | Windranger | 2.08% | 51.10% | 67,048 |
 | Winter Wyvern | 1.83% | 48.03% | 32,596 |
 | Earthshaker | 1.83% | 48.00% | 58,628 |
 | Lycan | 1.82% | 48.83% | 6,232 |
 | Keeper of the Light | 1.73% | 52.60% | 27,830 |
 | Huskar | 1.73% | 49.19% | 26,213 |
 | Lina | 1.68% | 51.86% | 53,163 |
 | Weaver | 1.65% | 50.91% | 43,637 |
 | Doom | 1.60% | 50.12% | 23,327 |
 | Chaos Knight | 1.53% | 50.03% | 32,452 |
 | Batrider | 1.50% | 56.73% | 11,194 |
 | Magnus | 1.43% | 51.34% | 57,154 |
 | Kunkka | 1.36% | 46.40% | 40,994 |
 | Viper | 1.33% | 46.41% | 45,639 |
 | Enigma | 1.23% | 49.76% | 19,219 |
 | Slardar | 1.22% | 45.61% | 60,852 |
 | Templar Assassin | 1.19% | 54.33% | 28,442 |
 | Faceless Void | 1.19% | 51.45% | 58,608 |
 | Terrorblade | 1.17% | 54.71% | 9,917 |
 | Ember Spirit | 1.16% | 52.49% | 20,947 |
 | Gyrocopter | 1.05% | 51.77% | 29,793 |
 | Pangolier | 0.97% | 54.20% | 22,066 |
 | Drow Ranger | 0.95% | 45.76% | 82,391 |
 | Medusa | 0.92% | 47.00% | 24,854 |
 | Sand King | 0.92% | 46.67% | 32,734 |
 | Luna | 0.92% | 49.46% | 62,061 |
 | Dragon Knight | 0.90% | 49.77% | 32,312 |
 | Primal Beast | 0.86% | 51.39% | 24,001 |
 | Slark | 0.83% | 51.17% | 52,323 |
 | Lich | 0.74% | 47.28% | 47,586 |
 | Marci | 0.72% | 49.62% | 36,093 |
 | Hoodwink | 0.72% | 49.37% | 79,346 |
 | Bounty Hunter | 0.69% | 49.55% | 49,574 |
 | Ursa | 0.69% | 50.38% | 40,060 |
 | Mirana | 0.69% | 51.18% | 37,849 |
 | Mars | 0.67% | 52.97% | 35,779 |
 | Death Prophet | 0.62% | 47.54% | 22,562 |
 | Dark Seer | 0.61% | 46.92% | 13,205 |
 | Beastmaster | 0.51% | 53.46% | 6,396 |
 | Nature's Prophet | 0.46% | 53.08% | 69,386 |
 | Enchantress | 0.44% | 54.66% | 21,712 |
 | Queen of Pain | 0.43% | 52.53% | 32,333 |
 | Treant Protector | 0.43% | 47.69% | 20,732 |
 | Elder Titan | 0.39% | 49.87% | 8,573 |
 | Dawnbreaker | 0.38% | 50.09% | 26,878 |
 | Razor | 0.34% | 49.67% | 47,666 |
 | Warlock | 0.32% | 46.64% | 34,848 |
 | Shadow Fiend | 0.31% | 50.43% | 68,916 |
 | Techies | 0.30% | 50.32% | 49,042 |
 | Sniper | 0.30% | 49.07% | 96,312 |
 | Ogre Magi | 0.28% | 47.42% | 80,862 |
 | Vengeful Spirit | 0.24% | 47.67% | 73,710 |
 | Chen | 0.24% | 55.14% | 5,560 |
 | Snapfire | 0.23% | 53.44% | 30,344 |
 | Alchemist | 0.21% | 50.90% | 17,630 |
 | Tusk | 0.20% | 54.14% | 26,326 |
 | Muerta | 0.17% | 52.39% | 18,546 |
 | Rubick | 0.16% | 54.13% | 62,715 |
 | Witch Doctor | 0.11% | 46.34% | 94,183 |
 | Spirit Breaker | 0.10% | 49.61% | 71,571 |
 | Outworld Destroyer | 0.08% | 48.74% | 29,344 |
 | Lone Druid | 0.06% | 50.07% | 8,381 |
 | Jakiro | 0.04% | 47.21% | 64,221 |
 | Undying | -0.02% | 47.30% | 36,817 |
 | Naga Siren | -0.02% | 52.54% | 13,817 |
 | Riki | -0.13% | 48.40% | 42,322 |
 | Phantom Assassin | -0.18% | 51.57% | 89,200 |
 | Bristleback | -0.19% | 48.17% | 57,300 |
 | Lion | -0.23% | 52.65% | 110,607 |
 | Morphling | -0.34% | 52.57% | 50,069 |
 | Shadow Shaman | -0.35% | 47.31% | 73,512 |
 | Dazzle | -0.35% | 49.49% | 54,428 |
 | Pugna | -0.43% | 51.58% | 26,938 |
 | Skywrath Mage | -0.46% | 50.26% | 50,781 |
 | Disruptor | -0.49% | 47.28% | 63,109 |
 | Phantom Lancer | -0.51% | 48.29% | 33,905 |
 | Silencer | -0.51% | 48.35% | 38,577 |
 | Venomancer | -0.52% | 47.00% | 52,712 |
 | Bane | -0.57% | 49.56% | 28,813 |
 | Nyx Assassin | -0.61% | 48.86% | 39,401 |
 | Brewmaster | -0.62% | 50.50% | 9,400 |
 | Visage | -0.63% | 50.81% | 8,760 |
 | Centaur Warrunner | -0.64% | 48.68% | 36,475 |
 | Leshrac | -0.70% | 45.92% | 32,816 |
 | Clockwerk | -0.72% | 51.00% | 29,997 |
 | Tiny | -0.74% | 53.35% | 33,759 |
 | Axe | -0.77% | 46.84% | 88,760 |
 | Omniknight | -0.78% | 51.69% | 32,092 |
 | Bloodseeker | -0.79% | 48.46% | 26,645 |
 | Tidehunter | -0.79% | 50.92% | 23,181 |
 | Juggernaut | -0.83% | 50.35% | 61,158 |
 | Phoenix | -0.88% | 52.23% | 17,993 |
 | Pudge | -0.93% | 49.30% | 161,241 |
 | Legion Commander | -0.96% | 50.57% | 69,357 |
 | Wraith King | -0.98% | 47.78% | 46,396 |
 | Necrophos | -1.03% | 48.21% | 54,462 |
 | Grimstroke | -1.08% | 51.03% | 35,971 |
 | Meepo | -1.08% | 48.55% | 17,017 |
 | Zeus | -1.20% | 47.50% | 84,141 |
 | Clinkz | -1.22% | 49.33% | 39,872 |
 | Earth Spirit | -1.24% | 52.46% | 18,601 |
 | Storm Spirit | -1.30% | 53.18% | 26,696 |
 | Lifestealer | -1.32% | 47.27% | 72,599 |
 | Night Stalker | -1.50% | 49.69% | 23,952 |
 | Invoker | -1.50% | 54.19% | 84,380 |
 | Tinker | -1.66% | 53.08% | 24,825 |
 | Puck | -1.69% | 54.08% | 34,008 |
 | Abaddon | -2.10% | 46.79% | 41,725 |
 | Spectre | -2.27% | 51.49% | 40,614 |
 | Timbersaw | -2.39% | 52.27% | 44,957 |
| Void Spirit | -2.50% | 53.47% | 17,354 |
| Arc Warden | -2.57% | 49.04% | 28,053 |
| Oracle | -2.64% | 51.11% | 32,644 |
| Shadow Demon | -2.90% | 54.57% | 12,923 |
| Anti-Mage | -3.93% | 50.92% | 70,577 |
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