Rare Units - Command An Army Wiki
The special troops that sit above the normal roster, how summoning actually works, and the farming routine that gives you the best shot at pulling one.
Overview
Rare units are the special troops that sit apart from the normal roster in Command An Army. They come from the summon system rather than the standard upgrade paths, and their odds are low enough that most players chase one for a long time. This page covers the types, the sources, and the farming loop. See Best Units first.
Treat every specific drop rate as current-version only, because balance patches and summon banners change odds over time. The numbers shown on your own summon screen are always the authority. Once you own a rare troop, the Equip Units guide shows how to slot it without breaking the rest of your formation.
Chasing a Super Rare Unit
This run shows the reality of rare hunting: a full army on the field, repeated summons, and the moment a genuine super rare finally drops. Watch how the player reacts and where the pull lands in their roster. Pair it with the Unit Tier List to judge whether a rare is worth building around.
What Makes a Unit Rare
Rare units are not simply stronger versions of normal troops. They usually have their own identity, unique playstyles, and availability rules that ignore the standard evolution paths, so you cannot evolve your way into one, as the Unit Tier List shows. The only reliable route is summoning, and the summon screen displays every chance before you spend.
Because the odds are low, luck matters more than any single strategy. What you can control is volume: more gems means more attempts, and more attempts means a better chance over a long run. Boost gem income with the How to Get Gems guide before you start a serious hunting session.
How to Get Rare Units
Every source below feeds the same goal: more attempts at the summon pool. Stack them together rather than relying on one, and remember that the specific odds live on the in-game summon screen for the current version. Check the Codes page for free gems before any bulk pull.
Because odds are low, treat summoning as a numbers game rather than a single lucky moment. Bank gems from quests, redeem every code via the Codes page, then spend in one focused session with a luck potion active. Spreading pulls across days wastes potions and rarely improves your odds, so plan each session around a specific unit you still need.
| Source | What You Get | Best For |
|---|---|---|
| Summoning | Direct chance at special units | The only real route to a rare |
| Redeem codes | Free gems for extra pulls | Jump-starting a fresh hunting session |
| Quests | Steady gems and XP | Funding pulls between matches |
| Luck potions | Temporarily improved odds | Saving for a bulk summon run |
| Ascension | Higher star levels on units you own | Powering up a rare once you have it |
Special Units Worth Chasing
These are the headline pulls players hunt for, each with a distinct feel. Do not spend everything on one banner if a different special better fills your roster gap, and confirm the current unit list in game since new specials arrive with updates. See the New Units Update for what recently changed.
Spartan
A rare heavy hitter that can anchor a frontline and carry a match.
Berserker
Aggressive high-damage special that melts anything it reaches.
Samurai
Signature special melee troop that players build whole armies around.
Future Specials
New limited units arrive with patches, so always check the summon screen.
A Better Rare-Hunting Routine
Random pulls reward patience and preparation, not frantic clicking. This routine stretches every gem you earn and stops you wasting attempts on odds you have not stacked. Keep an eye on the Codes page so free gems never expire unused.
Bank your gems
Save from quests and wins instead of summoning the moment you have enough for one pull.
Redeem every code
Claim active codes first so their free gems join your pool before you start spending.
Grab a luck potion
Use an odds booster immediately before a bulk summon session so every pull benefits.
Summon in batches
Fire off multi-pulls back to back rather than trickling single attempts across days.
Keep every duplicate
Do not delete extra copies; they become ascension fuel once you own a rare.
Rare-Hunting Tips
Small habits make rare hunting far less painful over time. None of these guarantee a pull, but together they raise your effective number of attempts and protect the gems you have already earned. Keep earning more through the How to Get Gems guide, and verify the live odds in game.
- Always redeem codes before a summon session for free extra gems.
- Do not spend on cosmetics while you are chasing a rare unit.
- Use luck potions only when you have several pulls ready.
- Keep duplicates for ascension rather than deleting them.
- Stop pulling once you land the rare you actually wanted.
- Cross-check odds on the summon screen; they change between versions.
Frequently Asked Questions
How do I get rare units?
Only through the summon system using gems. There is no reliable craft or shop path, so more gems simply means more attempts at the pool.
What is the actual drop rate?
The odds are displayed on the in-game summon screen and change between versions, so treat any number you read elsewhere as current-version only.
Do luck potions really help?
Yes. A luck potion temporarily improves your summon odds, so use one right before a batch of pulls rather than on a single attempt.
Should I delete duplicate rare units?
No. Keep every duplicate you pull, because extra copies are the fuel for ascending a rare unit once you finally own it.
Are rare units always the best picks?
Not always. A supported common troop can outperform an unsupported rare, so check the Unit Tier List before building around a pull.
How many gems should I save before summoning?
Save enough for a full bulk session so a luck potion covers several pulls at once, rather than spending gems one at a time.
Will new rare units be added?
Yes. Limited specials arrive with updates, so watch the patch log and the summon screen for fresh additions to the roster.