100 years ago, a Legendary Pokémon died saving 5 human children from a burning building. A Rainbow Pokémon took pity on it, and revived it with its Sacred Ash. Details in comments :
PokéItem #6 - Sacred Ash
Sacred Ash Flashfire 96/106 Values - MAVIN
Sacred Ash
Sacred Ash - YouTube
Sacred Ash - 2014 (Trent Orndorff)
POKEMON-TRAINER-SACRED ASH-2014-96/106-GREAT USED CONDITION!!! | eBay
100 years ago, a Mouse Pokémon died fighting an evil pyromaniac. A Rainbow Pokémon took pity on it, and revived it with its Sacred Ash. Details in comments : r/stunfisk
POKEMON-TRAINER-SACRED ASH-2014-96/106-GREAT USED CONDITION!!! | eBay