well Fire Emblem DS is rip your balls off hard IF your trying to not get ur units to die which is very important if they survive! Fire Emblem also has luck involved but usually enemys wont do criticals on you because they have no LUK! If you are thinking about trying Fire Emblem I strongly recommend Fire Emblem Sacred Stones for the GBA! you should be able to get it used for under 20 bucks! be warned if you play Sacred Stones you will most likely think the other Fire Emblem games suck because you will become a fanboy of that one game!