How Winter Wyvern and Io perform as teammates in Dota 2 7.41e, from ranked matches.
In Dota 2 7.41e, Winter Wyvern and Io win 50.88% of ranked matches when playing on the same team, over 1,940 matches.
Protecting a carry after an aggressive Relocate is where this duo finds its footing. Io can bring in a damage dealer, and Winter Wyvern immediately provides a safety net. Cold Embrace can block the initial physical burst on the relocated hero, giving them time to get situated and start attacking. If the enemy team collapses hard, Winter's Curse can turn their own damage against them and buy even more time. This defensive layering is strong, but the two supports offer very little offensive setup on their own. The success of the combo depends almost entirely on the third hero Io is tethered to, which keeps the synergy from being consistently overwhelming.
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 |
|---|---|---|
| Crusader & Archon | 45.87% | 327 |
| Legend & Ancient | 49.85% | 331 |
| Divine & Immortal | 53.50% | 200 |
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 | 50.88% | ▲ +0.6pp | 1,940 |
| 7.41d | 50.26% | ▼ -1.8pp | 17,946 |
| 7.41c | 52.02% | ▼ -0.5pp | 7,638 |
| 7.41b | 52.49% | — | 7,775 |
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Data updated Aug 17, 2026.