Opens at Senatus Level 110
"Amphitheatre is an even larger arena where you can upgrade your Heroes faster. Upgraded Amphitheatre can increase EXP your Heroes get in training."
The Amphitheatre is available at Senatus level 110, and functions as third Arena. It is a Training Area, like Arena and Circus Maximus. Amphitheatre increases share time of heroes, dropping the amount of time to share 2 to 5 heroes more than any other prior Training Arena .