clash-of-clans
During a clan war, do resources lost during a defense deduct from my actual resources?
As a corollary, now that war bases are separate from regular bases, does it make sense to build an extremely resource lossy war base as it doesn't cost me anything?
The only requirement is that a clan must have at least 5 members eligible for war. (This used to be 10, but 5 vs 5 war size is also available now.)
Members who are new to your clan will be ineligible for war if they left their previous clan while a war was in progress. They will become eligible for war again when the previous war is completed. You can check your clan member list to see if any members are ineligible for war, and see when they will be eligible again. If you start the clan war while members are still ineligible, those members will not be able to participate.
You can see when players will be eligible in their profile through clan's chat room.
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:
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.
Best Answer
No, all your resources are safe during clan wars. This is because clan wars are fought in the "war zone", away from your normal village.
From the wiki: