It provides 98 Attack, 108 Atk%, 49 Magic, and 4 linked Materia slots with Nothing growth. It deals damage equal to the following formula, dealing more damage the more AP is on the weapon:
This is then modified by the attack's power, for normal attacks, the multiplier is 1.0. Note that unlike most other damage modifiers, each character's ultimate weapon applies the damage modifier after all other modifiers, instead of modifying the attack strength of the weapon itself.
To achieve a base 1.0 damage multiplier, the weapon needs to have approximately 150,000 AP on it. To reach the 4x damage multiplier that most characters have with their ultimate weapons, the weapon needs to have approximately 630,000 AP on it.
Materia that do not add to the value are the Underwater, [[Magic Materia (Final Fantasy VII)]#Master Magic|Master Magic]], Master Command, Master Summon, and Enemy Skill Materia. Much like Vincent's Death Penalty, it is possible to induce the overflow glitch with this weapon if at least 8 mastered Knights of Round Materia are equipped on the weapon, among other conditions.