Curse

ghost status

Ghosts pay half their max HP to hurt the target every turn. Others decrease Speed but raise Attack and Defense.

Stats

PowerNone (status move)
AccuracyNever misses
PP10
Priority0
Categorystatus
Targetspecific move
IntroducedGeneration II

In game description

A move that has different effects depending on whether the user is a Ghost type or not.

Pokemon that learn Curse

Showing the first 40. Availability varies by server, since some restrict move tutors or TMs.

Using Curse in Cobblemon

Curse deals no damage, so its value is entirely in what it sets up. Status moves are usually the difference in a close gym fight, and sleep or paralysis also make a wild Pokemon far easier to catch.

Check the type chart before relying on it, and look up specific targets in the Pokedex where dual-type multipliers are already worked out.