This is from the Clan Wars FAQ, written by a SuperCell employee: The war base can not be directly upgraded or rearranged, but will instead mimic the arrangement and highest completed upgrade levels of your village during the preparation day. Buildings and traps will never be “under construction” in your war base.
Can you use heroes in clan wars if they are upgrading?
No, Heroes are not usable in any circumstance when they are being upgraded, and this includes the Archer Queen.
Can you use Queen in war if she is upgrading?
When the heroes “(Barbarian King, Archer Queen, Grand Warden) are upgrading, we cant use them in war. It is also important to note that heroes are active for defense during wars while on upgrade but players cannot use them for attacks.
Can you boost your heroes for war?
Upgrade While at War Because you need a book to easily upgrade them, you can expect an upgrade every two weeks. However, it mainly depends on your clan – if it allows you to enter in a war while upgrading your heroes. But, as we mentioned, the process will be very slow in case you decide to go to war.
Can I use barbarian king in war while upgrading?
What happens when you upgrade your base in Clan Wars?
Whatever the highest level your buildings are before the end of the preparation day is the level of those buildings during the war. Anything under construction in your “normal” base will revert to the level it was before you started the upgrade in your “war” base. This is from the Clan Wars FAQ, written by a SuperCell employee:
Can a war base be rearranged or upgraded?
The war base can not be directly upgraded or rearranged, but will instead mimic the arrangement and highest completed upgrade levels of your village during the preparation day. Buildings and traps will never be “under construction” in your war base.
Where do you find Town Hall upgrades in clan war?
Town hall upgrades completed during Prep Day will also show up now on the clan war base map. However, upgraded clan castles will NOT reflect their new, higher troop capacity, unless it finishes BEFORE Prep Day begins.
Can you upgrade clan castles before battle day?
However, upgraded clan castles will NOT reflect their new, higher troop capacity, unless it finishes BEFORE Prep Day begins. That is the only exception I am aware of to date. But overall, upgrading bases are more fluid than ever until Battle Day. The note about clan castles on the war map is pretty important. +1 for that alone.
