I saw Arena Rex at Gen Con but I didn't have a chance to demo it. Once back home I read the rules and watched a few videos. I tested the game with the Ludus Magnus vs Legio XIII starter lists.
In my demo, L. Magnus got a lot the first strike with Infelix, followed by continual favor from Marcus' Harrier ability and Micon using the Rouse tactic. Legio lost Aquilla and Gaius, and things were looking grim. Do people typically see this favor imbalance?
Fortunately, Ban-Luca turned into a monster with the Last Man Standing rule. She finished off Infelix, then Marcus. Micon couldn't get past her armor. He finally got a 5th success to trigger his Atlas Throw, tossing BL into a pit.
I'm now hooked and I've ordered a starter, dice, and rulebook.