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Hero Mastery
Tiny
An explosive burst ganker: the Avalanche + Toss combo blows up one target from full HP in an instant.
Mastery parameters
Your GPM, last hits and damage per game against other Tiny players — average vs Top 20%.
Members onlyLearning journey
- 1 Know the kit
- 2 Win the lane
- 3 Timing & rotations
- 4 Win the fights
- 5 Master
5 stages, each with one target from your own games and one short quiz. Make Tiny your mastery hero to start — progress shows on Home and Arcana.
Sign in through SteamPhase by phase
Laning: last hits above everything
You 80%Team 20%
Skills in lane — Pro cores max Tree Grab (E) first — 84% of 387 games since patch 7.41, then Avalanche (Q). First talent at level 11.
Avalanche–Toss combo at level 6 — Avalanche a target, then Toss while the rocks are still hitting — they take Avalanche twice. This one-shots enemy supports.
Skills 1–7
1
2- 3
- 4
- 5
6- 7
Starting items
Iron Branch40%
Gauntlets of Strength16%
Magic Stick11%
Tango10%
Quelling Blade6%
Circlet of Nobility6%
Pros buy this phase
Power Treads85%
Phase Boots8%
Echo Sabre7%
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.
Tiny
Counters & weaknesses
Right-click carry (physical damage)
The items that shut Tiny down, 3 heroes that trouble it, and your answer when you play it.
Members onlyWhy this way? How OpenAI Five learned
One hero, one role first
OpenAI's first bot played only Shadow Fiend, only mid, until it mastered it. Stay on Tiny in one role before moving on.
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.
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.
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.