Conquest of Nine Kingdoms: Demon Campaign 9 Strategy

To clear Demon Campaign 9 in Conquest of Nine Kingdoms, disable auto-battle, place high-defense tank heroes in the outer frontline slots, and manually trigger protective abilities during enemy burst attack animations. If your squad dies instantly, upgrade hero equipment and levels before re-attempting; if you run out of time, replace a secondary support hero with a dedicated damage dealer.

Hero Positioning and Formation Rules

Enemy formations in Demon Campaign 9 deliver high burst damage that easily dismantles uncoordinated teams. Protecting your fragile mages and archers requires strict positioning rules:

Anchor the outer edges: Place your highest-defense heroes—specifically those with active shields, damage-reduction passives, or armor buffs—in the outermost frontline positions. AI targeting focuses on these anchors first.
Counter cavalry flanks: If the stage deploys enemy cavalry, swap standard tanks for anti-cavalry specialists or heroes with high dodge stats to prevent backline breakthroughs.
Support swapping: If a core frontline tank falls early, swap their slot with a support hero offering passive HP or armor buffs to stabilize the line.

Manual Skill Timing and Execution

Auto-battle frequently wastes vital defensive cooldowns and crowd control abilities during low-threat phases. Switch to manual skill control to manage the stage's wave transitions and boss burst phases.

Save defensive cooldowns: Hold defensive barriers, shields, and group heals until enemy attack animations trigger.
Synchronize crowd control: Stun or disrupt high-damage enemy units right before their skills finish casting.
Align faction bonuses: Structure your team around matching faction bonuses or passive equipment synergies to boost baseline damage without sacrificing durability.

Adjusting for Stage Failure Points

Use your defeat reports to diagnose why your squad failed and apply the corresponding strategic fix:

Stage Failure Signal	Root Cause	Immediate Action
Core squad wipes in the first 10 seconds	Under-leveled stats or weak frontline gear	Pause campaign attempts; farm lower-level material stages to upgrade gear and hero levels.
Backline damage dealers die early	Enemy cavalry or assassin targeting	Shift anti-cavalry units to the outer edges and shield backline damage dealers.
Battle timer expires before boss dies	Over-defensive team composition	Replace one support unit or healer with a high-burst DPS hero to raise overall output.
Abilities activate during low-threat moments	Auto-battle skill execution	Turn off auto-battle and manually trigger heals and stuns during enemy attack cues.

Pre-Battle Prep and Resource Management

Before spending stamina on repeated attempts, check your squad's current status:

Restore Morale and Health: Verify that your units enter the battle at maximum health and full morale. Weakened units fail the stage's initial damage check.
Evaluate Hero Utility: Review post-match damage reports. Swap out high-rarity units that offer low damage or utility for lower-rarity heroes who bring dedicated stuns, shields, or specific role counters.