Hero Mastery
A cunning fae: Bramble Maze roots with thorns, Shadow Realm bursts from invisibility, Cursed Crown lays a delayed AoE stun, and Terrorize fears enemies.
Your XP and damage per game against other Dark Willow players — average vs Top 20%. Supports are not graded on GPM.
Members only5 stages, each with one target from your own games and one short quiz. Make Dark Willow your mastery hero to start — progress shows on Home and Arcana.
Sign in through SteamSkills in lane — Pro supports max Bramble Maze (Q) first — 93% of 397 games since patch 7.41, then Shadow Realm (W). First talent at level 11.
Cursed Crown → Maze → Shadow Realm — Cursed Crown a target, Bramble Maze holds them until the stun pops, then Shadow Realm bursts them.
Skills 1–7
Starting items
Items this phase
Dark Willow
The items that shut Dark Willow down, 3 heroes that trouble it, and your answer when you play it.
Members onlyOne hero, one role first
OpenAI's first bot played only Shadow Fiend, only mid, until it mastered it. Stay on Dark Willow 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.