Orichalcum Pulse summons harsh sunlight in battle as soon as a Pokémon with Orichalcum Pulse enters the battle. Its effects are the same as the move Sunny Day, lasting for five turns. This can be extended to eight turns if the Pokémon is holding a Heat Rock.
Orichalcum Pulse also boosts the Pokémon's Attack stat by roughly 33% (or more precisely, by a factor of 5461/4096) in harsh sunlight. This boost still applies even if the Pokémon is holding a Utility Umbrella.
Orichalcum Pulse displays a message when the Pokémon enters the battle, even if harsh sunlight is already present. However, if harsh sunlight is summoned while a Pokémon with Orichalcum Pulse is already in battle, no message is displayed (unlike Protosynthesis).
Skill Swap fails if either Pokémon has Orichalcum Pulse. Trace can copy Orichalcum Pulse. Role Play, Entrainment, and Doodle all fail when used on a target with Orichalcum Pulse. Orichalcum Pulse is affected by Simple Beam and Mummy.
Orichalcum Pulse will fail if overworld weather is present.
