MOBA

Multiplayer online battle arena (MOBA) is a sub-genre of real-time strategy games, where players control a single powerful unit on either side of two teams. The objective is to destroy the other team's without losing your own. Players are assisted by AI-controlled minions sent against the opposing team. A distinguishing characteristic of MOBA games is that the character's abilities improve as the match continues, giving it a touch of action-RPG flair.

Links

 * Wikipedia article on MOBAs