Luster Purge is a Psychic-type move with 70 power and 100% accuracy. It has a 50% chance of lowering the target's Special Defense by one stage, which can make subsequent uses of special attacks more effective. Luster Purge is the signature move of Latios, a legendary Pokémon known for its high Special Attack and Speed. The move is visually represented by a flash of bright, purifying light, fitting for its name. While its base power is not the highest among Psychic-type moves, the additional effect of potentially lowering Special Defense makes it a valuable tool in battle for setting up more devastating attacks.