How Oracle and Viper perform as teammates in Dota 2 7.41e, from ranked matches.
In Dota 2 7.41e, Oracle and Viper win 47.83% of ranked matches when playing on the same team, over 3,527 matches.
Pairing these two heroes often seems like a straightforward plan to enable a durable frontliner. Oracle is excellent at keeping a single ally alive through focused fire, and Viper is built to stand his ground and melt targets over time. False Promise on a Viper who is deep in his Nethertoxin can be very effective, letting him absorb huge amounts of damage. Oracle can even use Fate's Edict to set up a damage-free heal with Purifying Flames.
The problem is that this relationship is mostly one-way. While Oracle can do a lot for Viper, Viper offers almost nothing back. He has no stuns or mobility to save a caught-out Oracle. His entire kit is built around slowing and killing enemies in front of him, not peeling for a backliner. If the enemy team has heroes that can get onto the backline, they can often ignore the tanky Viper and go straight for his support. This leaves Oracle very exposed and makes the success of the duo dependent on whether the enemy team can punish his positioning.
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 | 53.78% | 238 |
| Crusader & Archon | 44.06% | 547 |
| Legend & Ancient | 53.78% | 370 |
| Divine & Immortal | 57.36% | 129 |
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 | 47.83% | ▲ +0.3pp | 3,527 |
| 7.41d | 47.50% | ▼ -2.0pp | 44,639 |
| 7.41c | 49.49% | ▼ -1.1pp | 15,519 |
| 7.41b | 50.55% | — | 16,549 |
Move this data into a draft
Both heroes start on Radiant. Fill the remaining slots to test this pairing inside a complete draft and get next-pick recommendations.
Data updated Aug 17, 2026.