What a hero pool is
A hero pool is the picks you take in ranked deliberately and consistently. Not "the whole roster I once touched", but a working set where you know the timings, power spikes and builds. If you're just starting out, a pool is easier to build from simple heroes for beginners. The narrower and deeper that set, the fewer mistakes from not knowing and the more even your results.
Take 2–3 heroes per role and drill them to automatism. A narrow pool gives depth of mastery and consistency, flex insures against bans and counter-picks, and one "meta" slot helps at the edge of your rating. Fewer heroes — deeper play.
Why a narrow pool climbs faster
Depth beats breadth. On a familiar hero you automatically know when the key item comes online, what your power spike is, how to play a fight and where your farm caps out. That removes a whole class of mistakes — the ones from not knowing.
- Consistent results. Fewer "new" situations — fewer random losses.
- Speed of decisions. No need to recall a hero's mechanics mid-fight — attention goes to the map and timings.
- Accurate builds. On a learned hero you misjudge items for the specific game less often.
Which heroes are strong right now — in the tier list; which carry the rating most reliably — in the guide on the best heroes for boosting.
How to build a pool per role
The working formula is a compact set with built-in flexibility; in solo, lean on self-sufficient picks for solo ranked that don't depend on the team:
- 2–3 heroes for your main role. This is the core you climb on and drill to automatism.
- Build in flex. At least one hero in the pool should play several positions — insurance in the pick phase.
- One "meta" slot. Keep a spot for a strong hero of the current patch, but don't make it your only foundation.
- Account for counter-picks. The pool should cover different situations so you aren't "countered to death" by one pick (see counter-picks).
When to widen it
Widening the pool is a tool, not a goal: depth is what climbs your rating, and in the broader guide on how to raise MMR a narrow pool sits at the foundation. Adding a hero makes sense in two cases:
- The core is on autopilot. Your main picks win consistently and need no thought — you can pick up a new one and bring it to the same level.
- The meta or bans hit your pool. If your heroes are often banned or sagged in the patch, add an alternative for current conditions.
Add one hero at a time and bring it to core level before taking the next. A dozen new picks at once won't deepen mastery — it'll spread it thin.
How many heroes the draft takes away
Pool width isn't an abstraction: part of the roster disappears before picking even starts. In ranked it works like this:
- 16 heroes banned every game. Players vote for one hero each over 15 seconds, every vote passes with a 50% chance, and the system tops the list up itself from ban rates in your bracket.
- Blind picks. Picking runs over three rounds and the other side's picks are only revealed when the round ends — you cannot adjust to the enemy at the last moment.
- Random is no way out. The random button excludes your 25 least played heroes, so it hands you something you already play, and only the first pick round may random at all.
The practical takeaway: one hero per role breaks regularly, two survive the bans almost always. A third is not for variety — it is for awkward counter-picks.
Common mistakes
These slip-ups stop the pool from working for your rating:
- Too wide a pool. Twenty heroes learned a little lose to three learned deeply.
- Switching heroes every game. Without repetition the skill doesn't stick and the timings don't sink in.
- Only "meta" picks. Chasing every patch with no proven core is a path to inconsistency.
- Zero flex. One hero for one position is easily punished by a ban or a counter-pick.
