Devastating Critical

(Epic Level Handbook, page 53, DnD 3.0)

[Epic]

Choose one type of melee weapon, such as longsword or greataxe. With that weapon, you are capable of killing any creature with a single strike.

Prerequisite

Cleave, Great Cleave, Improved Critical (weapon to be chosen), Overwhelming Critical (weapon to be chosen), Power Attack, Weapon Focus (weapon to be chosen), STR 25

Benefit

When using the weapon you have selected, whenever you score a critical hit the target must make a Fortitude save (DC 10 + 1/2 your character level + your Strength modifier) or die instantly. (Creatures immune to critical hits can't be affected by this feat.)

Special

You can gain this feat multiple times. Its effects do not stack. Each time you take the feat, it applies to a different type of weapon.