The Heroes in Clash of Clans, The Barbarian King, the Archer Queen and the Grand Warden have a special ability from level 5 onwards, which you can activate when attacking.
The Barbarian King’s Iron Fist
At maximum ability level the Iron Fist summons up to 22 Barbarians and gives the Barbarian King increased damage, speed. He also gets a health boost, unless his health bar is still full.
To activate the Iron Fist during a battle, you first have to deploy your Barbarian King on the battlefield. Then, simply tap again on the Barbarian King Icon to activate the ability.
The Archer Queen’s Royal Cloak:
When using the Royal Cloak ability, the Archer Queen becomes invisible and untargetable temporarily; any defenses attacking her will stop and find new targets. In addition, a group of fierce Archers are called in to reinforce their Queen upon activation. Like the Barbarian King, the Queen receives a health boost if she has already sustained some damage.
To activate the Royal Cloak, tap the Archer Queen’s icon again after deploying her.
The Grand Warden’s Eternal Tome
The Grand Warden’s ability, the Eternal Tome makes all troops around him invincible for a duration. Upgrade the Warden to increase the duration of this ability.
The Grand Warden’s ability, the Eternal Tome makes all troops around him invincible for a duration. Upgrade the Warden to increase the duration of this ability.