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Hero Mastery

Drow Ranger

A ranged physical-damage carry: Marksmanship grants huge agility while enemies stay away, Frost Arrows slow, and Multishot rips through waves and teams.

Pos 1 · Carry (Safe Lane)
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Mastery parameters

Your GPM, last hits and damage per game against other Drow Ranger players — average vs Top 20%.

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Learning journey

  1. 1 Know the kit
  2. 2 Win the lane
  3. 3 Timing & rotations
  4. 4 Win the fights
  5. 5 Master

5 stages, each with one target from your own games and one short quiz. Make Drow Ranger your mastery hero to start — progress shows on Home and Arcana.

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Phase by phase

Laning: last hits above everything

You 80%Team 20%

  • Skills in lane — Pro cores max Multishot (E) first — 94% of 398 games since patch 7.41, then Frost Arrows (Q). First talent at level 11.

  • Marksmanship + range item — With Marksmanship active and a range item, your DPS explodes. Stand far back and keep hitting.

Skills 1–7

  1. Q1
  2. E2
  3. Q3
  4. E4
  5. E5
  6. R6
  7. E7

Starting items

  • Iron Branch29%
  • Faerie Fire24%
  • Circlet of Nobility12%
  • Tango11%
  • Magic Wand11%
  • Magic Stick5%

Pros buy this phase

  • Power Treads51%
  • Falcon Blade47%
  • Dragon Lance3%
The Carry (Safe Lane)'s job this phase
  • Aim for 45–50 last hits by minute 10 — check that number every game, it's your main KPI.
  • Don't over-harass: trade HP only when it doesn't cost you last hits.
  • Minutes 2 & 4: ask your support to pull so the lane stays near your tower.

Drow Ranger

Counters & weaknesses

Right-click carry (physical damage)Fragile hero (easy to catch)

The items that shut Drow Ranger down, 3 heroes that trouble it, and your answer when you play it.

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Why this way? How OpenAI Five learned

  1. One hero, one role first

    OpenAI's first bot played only Shadow Fiend, only mid, until it mastered it. Stay on Drow Ranger in one role before moving on.

  2. Small, measurable rewards

    OpenAI Five was rewarded for last hits and staying alive long before it understood winning. That's why each journey stage has one number to hit.

  3. From yourself to the team

    Its 'team spirit' rose over the game: early on, look after yourself; late, play for the team. Each phase's meter shows the split.

  4. Use proven builds

    OpenAI Five's builds were hand-written, not trial and error. Start from the pro build, then experiment.

Phase items: what pros buy on this hero (OpenDota). Parameters: percentiles of players on this hero (OpenDota). Item effects checked against Valve's own item data.