Clan War
 
Any Clan can attack any other Clan that is displayed in the Clan List at any time. The
Clan Leader is the one to initiate war. You can attack a Clan whose position in
the clan ratings is not too far off yours: neither much higher, nor much lower.
A Clan War consists of two stages: the Preparation and the actual War. Once the second
stage is over, all the players get to see the Results window.
 
The Preparation
 
In order to launch an attack, the Clan needs to pay up the fee denominated in Honor Points:
it is a specific percentage share of the current value of the Treasury that
belongs to the Clan under attack. The Clan Leader can use the slider to select
the duration of the Preparation stage that leads up to the War stage. The
attack fee depends on this duration, too: the longer you intend to spend on
preparing for the War, the higher the cost of the attack.
The attack fee is debited from the attacking Clan’s Treasury immediately after the
Preparation kicks off. You cannot attack a Clan that is currently at War with
another Clan, whatever stage they are at.
 
Similarly, you cannot attack a Clan that has just been recently created. Let them settle
down first! However, this limitation is lifted as soon as this Clan first
attacks another.
 
Once the attack is launched, and all the way through to the end of the War, the
following limitations are imposed on both parties involved in battle:
- The Clans cannot accept new Clanmates, and their current Clanmates cannot leave. Also requests and invitations to join cannot be sent.
before they can be reviewed).
- You cannot change the rankings of any of your current Clanmates: neither promote, nor demote anyone.
 
The War
 
Once the War begins, the players of participating Clans move on to a special region
where the Clan ships are located and the stats of the current War are
available.
This is where you select your opponent by tapping the designated button. Once the
opponent is confirmed, the Heroes that will take part in the battle are selected,
too.
 
The player that loses the battle (either on the attacking or the defending side) is out of
the Clan War and can no longer attack or be attacked.

War duration is 30 minutes
 
The End of War
 
The Clan War ends in either of the following scenarios:
1. Time is up. In this case, victory is awarded to the defending Clan.
2. All the Clanmates of the defending Clan are defeated. In this case, victory is awarded to the attacking Clan.
3. All the Clanmates of the attacking Clan are defeated. In this case, victory is awarded to the defending Clan.
 
After the War is over, the attacking Clan loses its ability to attack yet another for a
brief period of time; however, it can still be attacked by other Clans.
Similarly, no other Clan can attack the defending Clan for a brief period of time, but the
latter can launch an attack on others at its own discretion.
 
The Reward

Regardless of whether it was on the attacking or defending side, the winning Clan grabs a
share of the losing Clan’s rating, thus increasing its own rating. If the
winner is the attacking Clan, it is also awarded a share of the losing Clan’s
Honor Points from its Treasury, upping the size of its own Treasury nicely.
All the rewards are calculated at the end of the Clan’s attack.