Devastating Critical
[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, eeffcuztrrq (weapon to be chosen), Great Cleave, Improved Critical (weapon to be chosen), Overwhelming Critical (weapon to be chosen), Power Attack, 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.
Rulebook: Epic Level Handbook (p. 53)
Edition: Supplementals (3.0)