Io — Dota 2 7.41e Counters, Synergies & Win Rate
Also known as: Wisp
Io (Wisp) in Dota 2 7.41e: win rate, pick rate, top counters and best teammates, from Batru's ranked-match pipeline.
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Io by rank bracket
Io performs consistently across skill brackets, winning 49.83%–50.75% everywhere from Herald & Guardian to Divine & Immortal.
| Bracket | Tier Rank | Win Rate | Pick Rate | Matches |
|---|---|---|---|---|
| Herald & Guardian | #54 of 127 | 49.83% | 4.98% | 5,475 |
| Crusader & Archon | #38 of 127 | 50.75% | 5.19% | 13,923 |
| Legend & Ancient | #51 of 127 | 50.74% | 4.88% | 10,539 |
| Divine & Immortal | #55 of 127 | 50.47% | 5.59% | 4,365 |
Recent ranked matches split by average match rank — the same data behind the per-rank tier lists each bracket links to.
Io win rate by patch
Io is winning 50.33% of 10,993 ranked matches in patch 7.41e, up 0.7pp from 7.41d.
| Patch | Win Rate | Change | Pick Rate | Matches |
|---|---|---|---|---|
| 7.41e | 50.33% | ▲ +0.7pp | 6.31% | 10,993 |
| 7.41d | 49.67% | ▼ -0.5pp | 3.99% | 984,389 |
| 7.41c | 50.12% | ▼ -0.9pp | 3.52% | 482,921 |
| 7.41b | 50.97% | ▼ -0.7pp | 3.69% | 519,519 |
| 7.41a | 51.65% | ▼ -0.1pp | 3.54% | 202,401 |
| 7.41 | 51.70% | — | 3.69% | 33,485 |
Win rate and pick rate per patch window over all quality-filtered ranked matches; the newest patch accumulates matches for days after release — its row shows the current sample size.
Io counters & matchups
Io the Wisp is a carry-enabling support whose Tether shares regen and speed, Spirits provide damage and control, Overcharge amps attack speed, and Relocate teleports the duo anywhere for a gank or escape. It's strong alongside lanes it can snowball, winning best into immobile heroes its ganks catch like Timbersaw, Nature's Prophet and Chen. Io is countered by sustain-cancel and pickoff: Underlord and Crystal Maiden out-tempo it, while Riki and Dawnbreaker punish its fragile core. Draft tip: Io is a snowball carry-enabler into kill-lane drafts; it's weaker into early aggression that beats it before its carry comes online.
Strong against
| Hero | Win Rate | Matches |
|---|---|---|
 Timbersaw | 61.76% | 272 |
 Storm Spirit | 60.61% | 391 |
 Medusa | 60.13% | 158 |
 Sand King | 59.82% | 219 |
 Gyrocopter | 58.59% | 128 |
 Earth Spirit | 58.14% | 344 |
 Tinker | 57.91% | 373 |
 Nature's Prophet | 57.48% | 428 |
Struggles against
| Hero | Win Rate | Matches |
|---|---|---|
 Broodmother | 35.00% | 220 |
 Dawnbreaker | 42.42% | 561 |
 Clinkz | 43.62% | 298 |
 Winter Wyvern | 43.64% | 236 |
 Razor | 43.87% | 269 |
 Pugna | 44.79% | 259 |
 Bloodseeker | 44.83% | 232 |
 Crystal Maiden | 44.91% | 648 |
Io synergies
Io is the ultimate carry-amplifier — Tether's regen and speed plus Relocate ganks let an aggressive core dominate, then teleport home. It pairs best with mobile, dive-happy carries: Spectre global-Haunts off Relocate ganks, while Slark snowballs stat-steal with Tether sustain, and Tidehunter gets Relocated into the perfect Ravage. Give Io a snowball carry and the Tether duo bullies the map from minute one.
Best teammates
| Hero | Win Rate | Matches |
|---|---|---|
 Leshrac | 62.48% | 797 |
 Slark | 59.96% | 537 |
 Marci | 59.86% | 558 |
 Visage | 58.77% | 114 |
 Meepo | 58.72% | 109 |
| Broodmother | 58.23% | 237 |
 Riki | 57.74% | 239 |
| Dawnbreaker | 56.50% | 554 |
Data updated Aug 9, 2026.