Command An Army Evolution — Level 20 Rule & All Evolution Chains
How to evolve units in Command An Army: the level-20 rule, all five evolution chains, and which evolutions to prioritize first.
To evolve a unit in Command An Army it must reach level 20 by fighting, then you spend evolution currency in the upgrade menu to move it to the next form in its chain. Four-star units never evolve — ascension is their only growth. This page maps every confirmed chain and the order that grows your account fastest. Seen in footage · 2026-09-22
The Level 20 Rule
Every evolution step works the same way: Seen in footage · 2026-09-15
- Fight with the unit until it reaches level 20. Units gain experience by participating in battles, not from sitting in your roster.
- Open the upgrade menu and choose Evolve — the action costs evolution currency.
- The unit moves one step up its chain; a new level-20 grind starts for the next step.
This is why the Rapid XP and leveling guide matters: the whole system is gated on battle experience, and players who feed a single unit through battles level it far faster than spreading fights across a full roster.
All Five Evolution Chains
| Chain | Steps | Endgame |
|---|---|---|
| Archer | Archer → Longbowman → Flaming Archer | Flaming Archer adds burn damage — the best ranged unit in the game |
| Mercenary | Mercenary → Squire → Knight | NEW in Update 2 — Knight is post-patch A tier and everyone already has Mercenaries |
| Cavalry | Scout Rider → Cavalryman → Lancer | Lancer is banner-featured; the line is widely called the strongest evolution family |
| Shield | Shieldman → Sentinel → Imperial Guard | Imperial Guard is the best cavalry counter in the game |
| Spear | Spearman → Pikeman | Pikeman inherits the anti-cavalry role |
The Flaming Archer's burn stacking in action — animated from footage by ItzVexo.
Evolve vs Ascend — Don't Confuse Them
- Evolve changes the unit's form up its chain (level 20 required). A unit can only evolve along its own line.
- Ascend merges two identical copies into a stronger version of the same unit, capped at Ascension 3 — this is what you do with spare duplicates that do not feed a useful evolution. Seen in footage · 2026-09-15
- Units that are already 4★ (Spartan, Immortal, Samurai, Berserker) cannot evolve; duplicates feed ascension or sell back for gems.
Which Evolution to Prioritize
- Archer → Flaming Archer first. It is the highest-return line for time spent — the Flaming Archer is the best ranged unit in the game, and one creator timed the full climb at roughly 20 hours of play. Seen in footage · 2026-09-15
- Mercenary → Knight second (Update 2). Everyone has Mercenaries; the Knight is A tier and needs no rare pulls.
- Scout Rider → Lancer for cavalry players — the strongest family if you prefer the mobile playstyle.
The tier list shows the endgame value of each chain; the units database carries every chain's confirmed details.
Related
- Units database — full roster, evolution chains and summon odds.
- Beginner guide — how to level units fast and spend gems on the right summons.
- Update 2 changes — why the new Mercenary line changed the evolution meta.