How Shadow Demon and Io perform as teammates in Dota 2 7.41f, from ranked matches.
In Dota 2 7.41f, Shadow Demon and Io win 41.92% of ranked matches when playing on the same team, over 2,851 matches.
Struggling to secure objectives or control the map is common with this pairing. Both supports need a lot of resources to come online, and there usually isn't enough farm to go around for both Shadow Demon and Io, leaving one or both under-leveled and ineffective. This creates a tempo disadvantage from the start. In teamfights, their abilities don't combine well for kills. Io wants to amplify a high-damage core with Tether, while Shadow Demon's Disruption sets up for burst that Io himself cannot provide. You end up with two defensive supports who can save allies but lack the tools to initiate or apply pressure.
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 |
|---|---|---|
| Legend & Ancient | 47.11% | 121 |
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 |
|---|---|---|---|
| 7.41f | 41.92% | ▼ -1.2pp | 2,851 |
| 7.41e | 43.09% | ▼ -1.0pp | 13,257 |
| 7.41d | 44.08% | ▼ -1.4pp | 9,069 |
| 7.41c | 45.53% | — | 3,593 |
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Data updated Oct 5, 2026.