Best Formations in Command An Army: 5 Setups Ranked (2026)

Three rules carry almost every wave in Command An Army: tanks in front to absorb the first contact, ranged and caster units in back where they deal damage uninterrupted, and healers in the middle — close enough to reach the front line, protected enough to survive. Everything else is refinement. Press Attack on a formation that follows those three rules and you will clear content that raw unit quality alone cannot.

Role decides position, not rarity. A Legendary Dragon placed where it tanks the whole wave performs worse than a Common Archer row placed correctly. This table is the placement shorthand we use for every layout on this page:

These are the four layouts we test with and recommend, named so you can rebuild them in seconds. Unit names reference the current 14-unit roster; substitute within the same role if you have not unlocked the exact unit yet — the shape matters more than the specific name.

Spells turn a losing wave into a win, but only when they are timed. All five current spells — Freeze, Fireball, Heal, Rage and Poison — are reactive tools: cast them at the moment below, not on cooldown. A wasted early Fireball is a full spell with nothing to show for it.

Formation skill in Command An Army is a loop, not a template. Deploy, attack, and watch the first ten seconds: if the front line collapses, add a tank or move the healer forward; if the back line clears too slowly, trade a melee slot for a ranged unit; if your commander dies, it is placed too far forward. Rebuild, attack again. The formation page on your screen is always one adjustment from clearing the wave that blocked you.

Not every wave responds to the same layout. After a few pushes you will notice three wave archetypes, each demanding a different formation tweak:

The right formation depends on what you own, not what you wish you owned. Use this decision table to pick the layout that matches your current roster and budget:

After testing hundreds of pushes, these are the errors that show up most often — and the fixes:

• Healer placed in front — the Healer must stand behind the front line to heal it. A Healer in the melee zone dies before it heals anything. Move it back one row.
• No front line at all — ranged units without a melee screen take contact damage and die fast. Even a $50 Swordsman wall buys your Archers three seconds of free fire.
• Spreading units too thin — one unit per row sounds safe but concentrates no damage anywhere. Cluster your ranged units so they focus fire on the same threat.
• Ignoring spell timing — spells are reactive tools, not cooldown dumpers. Hold Freeze until enemies clump, hold Heal until the front line dips below half. Wasted spells lose waves.
• Never adjusting — if the same wave kills you three times in a row, the formation is the bottleneck, not the army. Switch layout type entirely rather than buying more units.
• Upgrading the front before the back — a tank that lives longer with no damage behind it just dies later. Invest in your Wizard and Crossbow before upgrading your Swordsman line.

Formations are one piece of the puzzle. These guides cover the systems that feed into your layout decisions:

• Units — the full roster with rarity, role and cost for every unit you can field.
• Tier List — which units are worth fielding in your formation at each price bracket.
• Summon — how to spend gems on pulls versus buying units directly from the shop.
• Gems — where to find the gems that fund your next unit or summon.