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 | 2.90% | 44.84% |
 | Sven | 2.69% | 50.59% |
 | Troll Warlord | 2.67% | 44.65% |
 | Ancient Apparition | 2.64% | 46.24% |
 | Monkey King | 2.56% | 52.83% |
| Hero | AdvantageAdv. | Hero Win Rate | |
|---|---|---|---|
 | Anti-Mage | 3.66% | 50.78% |
 | Void Spirit | 3.03% | 53.90% |
 | Oracle | 2.77% | 51.03% |
 | Arc Warden | 2.66% | 49.55% |
 | Spectre | 2.35% | 51.60% |
| Hero | DisadvantageDis. | IoHero Win Rate | Matches Played | |
|---|---|---|---|---|
| Underlord | 2.90% | 44.84% | 16,368 |
| Sven | 2.69% | 50.59% | 19,787 |
| Troll Warlord | 2.67% | 44.65% | 36,169 |
| Ancient Apparition | 2.64% | 46.24% | 38,303 |
| Monkey King | 2.56% | 52.83% | 40,474 |
 | Broodmother | 2.33% | 55.29% | 13,705 |
 | Dark Willow | 2.18% | 49.05% | 25,509 |
 | Crystal Maiden | 1.93% | 48.05% | 66,664 |
 | Windranger | 1.82% | 51.43% | 62,172 |
 | Kunkka | 1.68% | 46.33% | 38,078 |
 | Winter Wyvern | 1.68% | 48.15% | 29,524 |
 | Huskar | 1.68% | 49.33% | 24,632 |
 | Earthshaker | 1.66% | 48.29% | 53,782 |
 | Lycan | 1.63% | 49.09% | 6,115 |
 | Doom | 1.57% | 50.32% | 21,258 |
 | Keeper of the Light | 1.55% | 52.91% | 23,832 |
 | Weaver | 1.54% | 51.18% | 39,235 |
 | Magnus | 1.51% | 51.30% | 55,004 |
 | Slardar | 1.40% | 45.66% | 55,676 |
 | Lina | 1.36% | 52.29% | 49,309 |
 | Batrider | 1.32% | 56.77% | 10,484 |
 | Enigma | 1.30% | 49.83% | 18,157 |
 | Chaos Knight | 1.24% | 50.39% | 28,096 |
 | Lich | 1.18% | 46.96% | 44,014 |
 | Viper | 1.06% | 46.87% | 41,750 |
 | Ursa | 1.04% | 50.10% | 36,905 |
 | Medusa | 1.03% | 47.04% | 22,630 |
 | Sand King | 0.98% | 46.60% | 29,934 |
 | Gyrocopter | 0.97% | 51.93% | 27,910 |
 | Luna | 0.95% | 49.56% | 56,682 |
 | Dark Seer | 0.92% | 46.64% | 12,323 |
 | Mars | 0.90% | 52.76% | 33,178 |
 | Queen of Pain | 0.88% | 52.06% | 29,508 |
 | Terrorblade | 0.87% | 54.88% | 9,616 |
 | Mirana | 0.85% | 51.06% | 34,560 |
 | Pangolier | 0.83% | 54.53% | 19,330 |
 | Dragon Knight | 0.82% | 50.00% | 31,345 |
 | Marci | 0.82% | 49.60% | 32,572 |
 | Faceless Void | 0.81% | 51.87% | 56,166 |
 | Enchantress | 0.80% | 54.40% | 18,832 |
 | Slark | 0.76% | 51.20% | 49,656 |
 | Drow Ranger | 0.71% | 46.02% | 75,612 |
 | Primal Beast | 0.71% | 51.63% | 22,866 |
 | Ember Spirit | 0.68% | 52.98% | 20,127 |
 | Beastmaster | 0.68% | 53.67% | 5,933 |
 | Vengeful Spirit | 0.65% | 47.44% | 64,278 |
 | Death Prophet | 0.65% | 47.51% | 20,580 |
 | Snapfire | 0.61% | 53.22% | 27,506 |
 | Elder Titan | 0.55% | 49.83% | 7,941 |
 | Bounty Hunter | 0.55% | 49.71% | 45,754 |
 | Hoodwink | 0.54% | 49.64% | 72,352 |
 | Templar Assassin | 0.50% | 55.05% | 26,042 |
 | Nature's Prophet | 0.43% | 53.15% | 63,700 |
 | Razor | 0.39% | 49.76% | 42,945 |
 | Techies | 0.38% | 50.30% | 45,948 |
 | Alchemist | 0.31% | 50.98% | 17,107 |
 | Chen | 0.30% | 55.04% | 5,205 |
 | Shadow Fiend | 0.30% | 50.63% | 62,812 |
 | Sniper | 0.26% | 49.30% | 90,456 |
 | Muerta | 0.21% | 52.41% | 17,390 |
 | Warlock | 0.21% | 46.82% | 31,831 |
 | Tusk | 0.16% | 54.18% | 24,236 |
 | Ogre Magi | 0.14% | 47.70% | 74,296 |
 | Treant Protector | 0.13% | 48.11% | 19,654 |
 | Witch Doctor | 0.13% | 46.49% | 88,052 |
 | Rubick | 0.07% | 54.32% | 59,180 |
 | Undying | 0.04% | 47.54% | 34,338 |
 | Spirit Breaker | 0.03% | 49.71% | 66,170 |
 | Jakiro | -0.01% | 47.45% | 58,897 |
 | Phantom Assassin | -0.02% | 51.51% | 81,073 |
 | Naga Siren | -0.03% | 52.58% | 12,880 |
 | Outworld Destroyer | -0.05% | 49.01% | 27,751 |
 | Riki | -0.07% | 48.38% | 36,156 |
 | Dawnbreaker | -0.10% | 50.62% | 24,261 |
 | Bristleback | -0.10% | 48.23% | 49,789 |
 | Lion | -0.18% | 52.63% | 105,634 |
 | Dazzle | -0.20% | 49.47% | 49,746 |
 | Bane | -0.22% | 49.31% | 26,166 |
 | Morphling | -0.24% | 52.57% | 48,566 |
 | Nyx Assassin | -0.25% | 48.56% | 36,078 |
 | Shadow Shaman | -0.28% | 47.44% | 68,280 |
 | Silencer | -0.29% | 48.27% | 36,588 |
 | Lone Druid | -0.37% | 50.66% | 7,935 |
 | Leshrac | -0.49% | 46.03% | 31,126 |
 | Disruptor | -0.50% | 47.45% | 56,506 |
 | Venomancer | -0.50% | 47.27% | 46,948 |
 | Bloodseeker | -0.52% | 48.25% | 23,915 |
 | Clockwerk | -0.53% | 50.79% | 26,440 |
 | Visage | -0.59% | 50.97% | 7,768 |
 | Skywrath Mage | -0.59% | 50.52% | 44,031 |
 | Axe | -0.62% | 46.80% | 81,705 |
 | Brewmaster | -0.64% | 50.74% | 8,719 |
 | Phantom Lancer | -0.72% | 48.75% | 30,873 |
 | Pugna | -0.77% | 52.03% | 25,968 |
 | Omniknight | -0.81% | 51.78% | 30,090 |
 | Pudge | -0.82% | 49.39% | 148,724 |
 | Centaur Warrunner | -0.84% | 49.01% | 34,286 |
 | Tiny | -0.86% | 53.61% | 32,118 |
 | Meepo | -0.90% | 48.47% | 15,008 |
 | Earth Spirit | -0.94% | 52.44% | 16,490 |
 | Juggernaut | -1.02% | 50.67% | 56,352 |
 | Legion Commander | -1.03% | 50.75% | 63,467 |
 | Necrophos | -1.04% | 48.33% | 50,066 |
 | Phoenix | -1.14% | 52.62% | 16,413 |
 | Zeus | -1.15% | 47.62% | 76,499 |
 | Tinker | -1.16% | 52.86% | 20,664 |
 | Tidehunter | -1.19% | 51.36% | 21,362 |
 | Lifestealer | -1.21% | 47.48% | 66,984 |
 | Grimstroke | -1.23% | 51.33% | 33,807 |
 | Storm Spirit | -1.25% | 53.30% | 25,150 |
 | Invoker | -1.25% | 53.89% | 77,563 |
 | Clinkz | -1.26% | 49.42% | 35,626 |
 | Wraith King | -1.36% | 48.40% | 41,401 |
 | Night Stalker | -1.42% | 49.71% | 19,042 |
 | Shadow Demon | -1.83% | 53.54% | 11,880 |
 | Puck | -1.94% | 54.42% | 33,015 |
 | Timbersaw | -1.97% | 51.93% | 40,848 |
 | Abaddon | -2.22% | 47.01% | 37,537 |
| Spectre | -2.35% | 51.60% | 36,583 |
| Arc Warden | -2.66% | 49.55% | 26,696 |
| Oracle | -2.77% | 51.03% | 29,674 |
| Void Spirit | -3.03% | 53.90% | 16,779 |
| Anti-Mage | -3.66% | 50.78% | 65,132 |
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