Arena/1.03

Minotaur
Arenas produce the more common Minotaur units, as such, you'll be building quite a lot of them. Fortunately, they're relatively average in size, if not smaller, so you wont need to expand the boundaries of your base much to slot these in. Their hit points seem to be surprisingly low for a core production building and they do cost quite a bit of gold, which can clash with building towers and Basilisks.