Talk:Laboratory/@comment-12283501-20130719224548

Please note that if you finish an upgrade for a troop/spell while there are said troops/spells in a camp/factory, you don't have to pay the extra gold/elixir for them. Example:You have 20 barbarians in your army camps. If you were upgrading barbarians to, say level 4, if the upgrade happened to finish while the barbarians were still at camp, you wouldn't have to pay 20 extra elixir per barb unless you trained more.