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Hero Mastery

Spectre

A global late-game carry: Haunt sends illusions to every enemy on the map, Desolate punishes isolated targets, and Dispersion reflects damage.

Pos 1 · Carry (Safe Lane)
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Mastery parameters

Your GPM, last hits and damage per game against other Spectre 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 Spectre 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 Spectral Dagger (Q) first — 94% of 187 games since patch 7.41, then Dispersion (E). First talent at level 11.

  • Level 6 — global Haunt — When a fight breaks out anywhere, Haunt in and snag the most isolated hero — Desolate punishes them.

Skills 1–7

  1. Q1
  2. E2
  3. Q3
  4. W4
  5. Q5
  6. R6
  7. Q7

Starting items

  • Iron Branch31%
  • Quelling Blade16%
  • Tango15%
  • Magic Stick14%
  • Faerie Fire10%
  • Circlet of Nobility10%

Pros buy this phase

  • Power Treads94%
  • Hand of Midas2%
  • Perseverance2%
  • Diffusal Blade1%
  • Phylactery1%
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.

Spectre

Counters & weaknesses

Passive-reliant heroRight-click carry (physical damage)

The items that shut Spectre 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 Spectre 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.