The Training Dummy is an XP production building. Its first plot requires Base level 8. It has its own output progression, separate from the resource buildings that produce food, iron and coins.
How XP output works
XP Output/hr is the amount produced per hour at the building's current level. It starts at 1,440 at level 1, reaches 20,880 at level 10 and grows to 108,000 at level 20. Level 30 provides 259,200 per hour.
The increase is not the same at every level. Later upgrades can add a much larger amount of hourly production than the earliest ones. The output value belongs to the completed level, rather than describing a lump-sum XP reward for the upgrade.
XP and hero progression
The Recruitment Center recruits heroes; the Training Dummy produces XP. These are different parts of development. Recruiting another hero does not raise the Training Dummy's output.
Additional Training Dummy plots have individual construction requirements. Each plot's building level determines its published production rate, while the Base remains part of the construction progression.
