I don't know it it is a System or just Trigger Enhanced, Because it uses the triggers to enhance greatly, but they all have a baes trigger. so it maye be a system =P
You will find 3 spells: Fireball, Fireblast and frostbolt. They are Warcraft 3 base spells (Fireblast is not) They have a Chance to crit based on catser's inteligence, and a cahcne to resist calculated by caster level versus enemy level. they progress like World of Warcraft,( Fireball and Frosbolt have 11 rans while Fireblast has 7) and the unit goes untill level 60. you can still add spell damage by a command, and increase crit chance by a commando too. there are some usefull commands to regen mana, spawn enemies to test and level up the caster. some may find it very simple but i found challenging due to my experience in Triggering.