How Undying and Io perform as teammates in Dota 2 7.41e, from ranked matches.
In Dota 2 7.41e, Undying and Io win 50.72% of ranked matches when playing on the same team, over 6,027 matches.
Thinking of Io as a way to supercharge an early Undying push can be a trap. While Tether and Overcharge certainly make Undying more durable as he dives towers and drops his Tombstone, the two heroes don't truly solve each other's core problems. Io wants to enable a carry who deals damage and scales into the late game, which isn't Undying's job. A Relocate gank with Undying is also less threatening than with a hero who has a real stun, often relying entirely on the slow from zombies to secure a kill. The synergy is mostly front-loaded into the early game, but it fizzles out if that pressure doesn't create a massive lead for their actual cores.
How this pairing performs across skill brackets — the duo's team win rate in recent ranked matches, split by average match rank. Ranks with too few recent matches are omitted. These rows use the last 30 days of quality-filtered ranked matches, all patches in that span combined — a wider window than the patch-scoped count above, so the per-rank match totals can exceed it.
| Rank | Team win rate | Matches |
|---|---|---|
| Herald & Guardian | 49.72% | 354 |
| Crusader & Archon | 54.07% | 1,106 |
| Legend & Ancient | 52.12% | 944 |
| Divine & Immortal | 48.32% | 507 |
This duo's team win rate in each recent balance patch — whether the pairing is trending up or down. Patches without enough matches are omitted.
| Patch | Team win rate | Change | Matches |
|---|---|---|---|
| 7.41e | 50.72% | ▲ +0.9pp | 6,027 |
| 7.41d | 49.78% | ▼ -0.6pp | 46,392 |
| 7.41c | 50.34% | ▼ -0.3pp | 14,817 |
| 7.41b | 50.60% | — | 15,128 |
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Data updated Aug 17, 2026.