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Hero Mastery

Luna

A physical AoE carry: Moon Glaives bounce between targets for fast farm, Lucent Beam nukes + mini-stuns, and Eclipse rains beams across an area.

Pos 1 · Carry (Safe Lane)
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Mastery parameters

Your GPM, last hits and damage per game against other Luna 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 Luna 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 Moon Glaives (E) first — 66% of 397 games since patch 7.41, then Lucent Beam (Q). Some max Lucent Beam (Q) first instead (34%). First talent at level 11.

  • Level 6 — Eclipse — Eclipse deals huge burst to an isolated target. Use it in tight space (the Rosh pit) so all beams hit one enemy.

Skills 1–7

  1. Q1
  2. E2
  3. Q3
  4. E4
  5. Q5
  6. R6
  7. E7

Starting items

  • Iron Branch33%
  • Faerie Fire17%
  • Circlet of Nobility14%
  • Tango12%
  • Magic Stick9%
  • Quelling Blade6%

Pros buy this phase

  • Power Treads71%
  • Mask of Madness23%
  • Dragon Lance5%
  • Yasha1%
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.

Luna

Counters & weaknesses

Passive-reliant heroRight-click carry (physical damage)

The items that shut Luna down, 5 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 Luna 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.