Io — Dota 2 7.41 Counters, Synergies & Win Rate
Also known as: Wisp
Io (Wisp) in Dota 2 7.41: win rate, pick rate, the heroes Io counters and struggles against, and its best teammates — from recent ranked matches by Batru's AI win-prediction pipeline.
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: Timbersaw (57.4%), Nature's Prophet (57.1%) and Chen (57.0%). Io is countered by sustain-cancel and pickoff: Underlord (48.0%) and Crystal Maiden (48.4%) out-tempo it, while Riki (48.1%) and Dawnbreaker (48.2%) 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 | 57.42% | 7,180 |
 Nature's Prophet | 57.11% | 16,837 |
 Chen | 56.97% | 2,482 |
 Tinker | 56.96% | 12,550 |
 Shadow Demon | 56.16% | 6,457 |
 Puck | 55.83% | 11,198 |
 Gyrocopter | 55.82% | 6,806 |
 Morphling | 55.21% | 14,002 |
Struggles against
| Hero | Win Rate | Matches |
|---|---|---|
 Underlord | 48.03% | 8,984 |
 Riki | 48.09% | 11,715 |
 Dawnbreaker | 48.24% | 15,229 |
 Crystal Maiden | 48.36% | 24,308 |
 Lich | 48.37% | 28,396 |
 Techies | 48.38% | 28,330 |
 Slardar | 48.48% | 16,668 |
 Lone Druid | 48.59% | 6,262 |
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 (56.0%) global-Haunts off Relocate ganks, while Slark (55.7%) snowballs stat-steal with Tether sustain, and Tidehunter (55.4%) 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 |
|---|---|---|
 Spectre | 55.98% | 14,606 |
 Slark | 55.71% | 34,810 |
 Tidehunter | 55.37% | 22,843 |
 Muerta | 55.21% | 16,185 |
 Axe | 55.21% | 29,061 |
 Legion Commander | 55.05% | 33,437 |
 Keeper of the Light | 55.02% | 11,176 |
 Bristleback | 54.99% | 22,604 |