I need help solving a riddle?

he lord of darkness has brought us fear.

We lived in hope of heroes bringing us salvation us.

The lord was defeated,

times upon times

He stood up again

Bringing nightmare to the children

The lord was weakened, it left him 75 soulforces left.

Each hero was a important sacrifice.

The 4 heroes damage to his soulforce was not in vein,

for each time the lord stood up again he would have 19 soulforce less.

Please bring an end to this nightmare, we offer you our ultimate mastersmith to you if you can deal with this problem.