The Training Camp produces soldiers for your army. You can select the type of unit you want to train and tap on the “+” button to select the number of units of the type you want to train.
Training requires some resources that normally include Gold, Dust of a certain rarity, and Faction Dust if the training you’ve chosen is for certain factions only.
Most of the Training Camp’s training options include more than one rarity and more than one faction, so the result is random! For example: If you select the Fast Senior Common and Rare training, you may get Common or Rare units of ranks 1 or 2 from any Faction.
As you upgrade your Training Camps, you’ll unlock new training options of higher ranks and rarities!