This is actually supposed be in General FE, but my story came from Blazing Sword. (That and when 5am rolls around you don't pay much attention to things.)
So really, stories from any FE game are welcome.
I was doing chapter 16x(the one with Canas and at the dock) the enemies that are about 4 levels higher than my strongest unit, and have 3 killer weapons and some silver. The whole time people are telling you "you could never do this, run away you coward." So I just basically rush in there and spam Kent. Dramatic victory. Collect from villages and spam supports. All is well. Then I spot the Arena, greed closes in on me. Next, Sain or Guy usually dies. Then, finally, twenty turns of my life, *poof* gone.