almost 4 years ago - Sleipnir - Direct link
In the next update, I've changed it so training dummies are:
-Very difficult to destroy.
-Quick to build.
-Quick to deconstruct.
This should fix the issue of builders always having to use resources and time to keep the barracks stocked with training dummies. Warriors/Archers/Mages will still lose energy training there and will stop training when depleted which is the main trade off to get the xp.