Karma (ability)

Everyone's Grudge, also known as Karma, is a recurring enemy ability in the series. It is a special attack of the Tonberry, which usually deals non-elemental damage equal to the number of enemies the player has killed x a random factor, usually by x10 or x100.

Final Fantasy VII
Everyone's Grudge is used by the Master Tonberry, which it will only used if it is attacked twice before it takes a step. It deals unblockable and unreducable non-elemental damage to the last person who dealt the second hit equal to the number of enemies they have killed x10. The Tonberry, found only in the Battle Square of the Gold Saucer, uses a similar attack called Time Damage as its counter-attack against the 3rd attack, which would deal damage to the player equal to the number of hours played x 100 + Minutes played. However, the player will never see this attack due to the impossibility of doing so.

Final Fantasy VIII
Everyone's Grudge is used by the Tonberry as a random counterattack to any attack, and it deals damage to the target equal to the number of monsters the target has killed x20. It is used as a counter to the 2nd attack on it before it takes its first step of that battle. If a character hit by this attack has killed 500 or more monsters, then it is an instant KO on them.

Final Fantasy IX
Everyone's Grudge is used by Tonberry, and does damage to the entire party equal to 4 to the power of the amount of Tonberries the player has killed. It is used freely, making the Tonberry extremely dangerous.

Final Fantasy X
Karma is used by the Tonberry family, including Tonberry, Master Tonberry, and Don Tonberry. When used by Tonberry or Master Tonberry, it inflicts unblockable unreducable damage equal to the number of enemies the target has killed x10. When used by Don Tonberry, it inflicts damage equal to the number of enemies x100 instead.

Final Fantasy X-2
Karma is only used by Mega Tonberry, which deals damage equal to 1/2 of their remaining HP and MP and inflicts Petrify, Poison, and Confusion.