The map has 8 heroes, 5 spells per heroes, 2 potions, can include up to 8 players. Also, 5 footmen levels.
It's just like Zealot Frenzy in SC2 and Footmen Frenzy in WC3.
The feature aspect of this map is the hero experience/level up system, which tries to distinguish kills between hero and non-hero (footmen). Hero levels up only when it's engaged in combat, and hero kills are rewarded as experience for leveling up only when the two or more heroes were engaged in combat.