Io Counters

Best heroes to pick against Io — and who Io beats

Across 122 matchups in Divine and Immortal ranked games, the hardest counters to Io are Oracle, Marci and Magnus. Io does best against Earth Spirit, Night Stalker and Outworld Devourer. Best teammates: Leshrac, Outworld Devourer and Marci.

All Io matchups

Advantage is the STRATZ matchup score: how many win-rate points the matchup adds (+) or takes away (−) from this hero compared with what both heroes’ overall strength would predict. Negative = that opponent counters this hero.

#	Opponent	Advantage	Io win rate	Games	Counters
Heroes that counter Io · 68
1	Enchantress	−7.8	45.0%	111*	Enchantress counters
2	Jakiro	−7.8	46.7%	246*	Jakiro counters
3	Visage	−7.6	38.7%	111*	Visage counters
4	Oracle	−6.2	44.9%	345	Oracle counters
5	Mars	−6.0	48.1%	233*	Mars counters
6	Marci	−6.0	45.5%	343	Marci counters
7	Sand King	−5.8	49.1%	108*	Sand King counters
8	Clinkz	−5.3	44.3%	167*	Clinkz counters
9	Kez	−4.6	53.0%	268*	Kez counters
10	Warlock	−4.5	49.4%	172*	Warlock counters
11	Templar Assassin	−4.2	51.1%	227*	Templar Assassin counters
12	Silencer	−4.1	47.7%	266*	Silencer counters
13	Magnus	−4.1	48.1%	566	Magnus counters
14	Techies	−4.1	35.6%	90*	Techies counters
15	Ancient Apparition	−4.0	48.3%	449	Ancient Apparition counters
16	Gyrocopter	−3.8	50.8%	177*	Gyrocopter counters
17	Meepo	−3.7	40.4%	89*	Meepo counters
18	Earthshaker	−3.6	47.2%	724	Earthshaker counters
19	Underlord	−3.3	52.1%	213*	Underlord counters
20	Bloodseeker	−3.2	47.5%	59*	Bloodseeker counters
21	Monkey King	−3.2	51.1%	186*	Monkey King counters
22	Arc Warden	−3.1	44.2%	208*	Arc Warden counters
23	Venomancer	−3.1	50.9%	163*	Venomancer counters
24	Tiny	−3.1	54.0%	346	Tiny counters
25	Grimstroke	−2.9	45.9%	558	Grimstroke counters
26	Huskar	−2.8	52.2%	201*	Huskar counters
27	Puck	−2.8	49.4%	154*	Puck counters
28	Spectre	−2.8	47.6%	250*	Spectre counters
29	Shadow Fiend	−2.7	57.9%	323	Shadow Fiend counters
30	Sniper	−2.6	51.4%	364	Sniper counters
31	Lycan	−2.4	46.1%	89*	Lycan counters
32	Lone Druid	−2.3	48.9%	137*	Lone Druid counters
33	Doom	−2.3	49.0%	469	Doom counters
34	Crystal Maiden	−2.1	49.5%	457	Crystal Maiden counters
35	Witch Doctor	−2.0	49.1%	611	Witch Doctor counters
36	Faceless Void	−1.8	50.7%	217*	Faceless Void counters
37	Bristleback	−1.8	53.6%	112*	Bristleback counters
38	Ogre Magi	−1.8	50.8%	443	Ogre Magi counters
39	Hoodwink	−1.7	52.8%	668	Hoodwink counters
40	Viper	−1.5	50.0%	254*	Viper counters
41	Broodmother	−1.4	50.5%	107*	Broodmother counters
42	Storm Spirit	−1.4	53.2%	248*	Storm Spirit counters
43	Treant Protector	−1.4	55.2%	105*	Treant Protector counters
44	Morphling	−1.3	51.1%	223*	Morphling counters
45	Razor	−1.3	50.0%	198*	Razor counters
46	Void Spirit	−1.3	51.6%	250*	Void Spirit counters
47	Slardar	−1.3	52.4%	229*	Slardar counters
48	Lifestealer	−1.2	48.8%	682	Lifestealer counters
49	Windranger	−1.1	51.2%	932	Windranger counters
50	Queen of Pain	−1.1	53.0%	330	Queen of Pain counters
51	Death Prophet	−1.0	51.9%	239*	Death Prophet counters
52	Riki	−1.0	48.7%	152*	Riki counters
53	Dark Willow	−0.9	49.7%	447	Dark Willow counters
54	Keeper of the Light	−0.9	49.2%	262*	Keeper of the Light counters
55	Lina	−0.8	53.4%	627	Lina counters
56	Wraith King	−0.8	47.3%	277*	Wraith King counters
57	Axe	−0.7	51.9%	595	Axe counters
58	Drow Ranger	−0.7	57.1%	224*	Drow Ranger counters
59	Snapfire	−0.6	51.6%	626	Snapfire counters
60	Brewmaster	−0.6	48.3%	207*	Brewmaster counters
61	Abaddon	−0.6	50.5%	105*	Abaddon counters
62	Skywrath Mage	−0.6	51.9%	399	Skywrath Mage counters
63	Enigma	−0.5	45.2%	270*	Enigma counters
64	Invoker	−0.4	48.5%	1,137	Invoker counters
65	Tidehunter	−0.4	54.1%	727	Tidehunter counters
66	Dawnbreaker	−0.4	47.9%	637	Dawnbreaker counters
67	Ursa	−0.2	50.1%	367	Ursa counters
68	Undying	−0.2	52.8%	682	Undying counters
Io is favoured against · 54
1	Chaos Knight	+11.6	62.1%	95*	Chaos Knight counters
2	Earth Spirit	+10.0	60.0%	345	Earth Spirit counters
3	Centaur Warrunner	+7.4	60.6%	175*	Centaur Warrunner counters
4	Leshrac	+6.8	54.2%	118*	Leshrac counters
5	Night Stalker	+6.3	54.8%	431	Night Stalker counters
6	Outworld Devourer	+4.5	51.9%	694	Outworld Devourer counters
7	Tusk	+4.3	56.5%	428	Tusk counters
8	Pugna	+4.3	53.3%	169*	Pugna counters
9	Vengeful Spirit	+4.3	53.5%	314	Vengeful Spirit counters
10	Phantom Lancer	+4.2	53.2%	587	Phantom Lancer counters
11	Largo	+3.3	54.8%	115*	Largo counters
12	Timbersaw	+3.2	57.6%	304	Timbersaw counters
13	Dragon Knight	+3.1	51.1%	849	Dragon Knight counters
14	Bane	+3.0	54.8%	166*	Bane counters
15	Rubick	+3.0	54.9%	1,174	Rubick counters
16	Dazzle	+2.9	51.7%	325	Dazzle counters
17	Dark Seer	+2.9	53.1%	354	Dark Seer counters
18	Troll Warlord	+2.6	53.4%	73*	Troll Warlord counters
19	Beastmaster	+2.5	55.7%	97*	Beastmaster counters
20	Omniknight	+2.5	50.4%	115*	Omniknight counters
21	Alchemist	+2.5	57.5%	80*	Alchemist counters
22	Kunkka	+2.4	54.1%	218*	Kunkka counters
23	Bounty Hunter	+2.3	48.5%	470	Bounty Hunter counters
24	Muerta	+2.3	54.9%	113*	Muerta counters
25	Shadow Shaman	+2.3	52.1%	572	Shadow Shaman counters
26	Medusa	+2.2	55.4%	65*	Medusa counters
27	Nature's Prophet	+2.2	59.1%	406	Nature's Prophet counters
28	Phoenix	+1.9	51.0%	363	Phoenix counters
29	Pudge	+1.9	53.4%	1,506	Pudge counters
30	Sven	+1.8	50.9%	685	Sven counters
31	Zeus	+1.7	55.1%	419	Zeus counters
32	Legion Commander	+1.7	50.6%	611	Legion Commander counters
33	Tinker	+1.6	54.0%	298*	Tinker counters
34	Weaver	+1.5	53.8%	169*	Weaver counters
35	Nyx Assassin	+1.4	50.2%	596	Nyx Assassin counters
36	Pangolier	+1.4	55.3%	264*	Pangolier counters
37	Juggernaut	+1.3	49.2%	655	Juggernaut counters
38	Slark	+1.2	52.8%	669	Slark counters
39	Ember Spirit	+1.2	52.8%	574	Ember Spirit counters
40	Phantom Assassin	+1.0	51.8%	311	Phantom Assassin counters
41	Winter Wyvern	+0.8	50.1%	615	Winter Wyvern counters
42	Lion	+0.8	53.7%	1,008	Lion counters
43	Spirit Breaker	+0.8	50.1%	790	Spirit Breaker counters
44	Terrorblade	+0.7	55.9%	481	Terrorblade counters
45	Luna	+0.6	51.2%	945	Luna counters
46	Necrophos	+0.6	52.3%	640	Necrophos counters
47	Mirana	+0.6	51.6%	655	Mirana counters
48	Primal Beast	+0.5	51.8%	251*	Primal Beast counters
49	Lich	+0.5	49.8%	603	Lich counters
50	Disruptor	+0.4	50.6%	480	Disruptor counters
51	Anti-Mage	+0.4	51.6%	732	Anti-Mage counters
52	Shadow Demon	+0.3	55.8%	120*	Shadow Demon counters
53	Clockwerk	+0.2	53.0%	134*	Clockwerk counters
54	Ring Master	+0.2	52.4%	420	Ring Master counters