Hero Mastery
An aggressive swap support: Wave of Terror weakens the lane, Magic Missile stuns, and Nether Swap drags a key target straight into your team.
Your XP and damage per game against other Vengeful Spirit 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 Vengeful Spirit your mastery hero to start — progress shows on Home and Arcana.
Sign in through SteamSkills in lane — Pro supports max Magic Missile (Q) first — 72% of 273 games since patch 7.41, then Wave of Terror (W). First talent at level 11.
Level 2 — Stun + Wave — Magic Missile + Wave of Terror is already a lane kill. Open a gank with the stun, then wave to shred the target's armor.
Skills 1–7
Starting items
Pros buy this phase
Vengeful Spirit
The items that shut Vengeful Spirit 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 Vengeful Spirit 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.