Dark Messenger (ability)

Dark Messenger is a recurring summon ability in the series, and is the signature attack of Diabolos. It generally inflicts fractional or Gravity damage to all enemies, or inflicts Dark-elemental damage instead.

Final Fantasy VI
Dark Messenger is the summon ability of Diabolos, which inflicts Gravity damage equal to 15/16th of the target's HP while ignoring Instant Death resistance and also inflicts Seizure, at the cost of 100 MP.

Final Fantasy VIII
Dark Messenger is the summon ability of Diablos, which inflicts fractional non-elemental damage to all enemies equal to the following formula:


 * $$Damage = (Diablos's Level / 100) * Enemy's maximum HP$$

Damage is capped at 9,999 HP regardless of how high the damage may go.

Final Fantasy Dimensions
Dark Messenger is the summon ability of Diabolos, costing 64 MP to use and requiring Summon Magic to be level 6 to use. It inflicts major Darkness-elemental damage to all enemies.