It's MOBA meets chess. Players take turns deploying their four heroes. Then there's a round for computer-controlled minions. Then players go again. It's a slow-motion MOBA. A Slo-MOBA.
For those of us who spend their time in games like League of Legends cursing as more skilled players do amazingly horrible things to our characters, here lies salvation. With real-time battles that give players two minutes a turn or epic asynchronous games with days between rounds, Arena of Heroes is perfect for players without a lot of time to invest.