my first shiny was in scarlet/violet, before I completed the game it was hawlucha and it was 20 levels higher than the rest of my team, you see I first sent out gimmighoul, I had no idea what gimmighoul was, it was just a cool mon and I said to myself in the form of yelling "Holy crap!". Of coarse, as usual it high jump-kicked itself to death, so it wasn't caught. My first caught shiny was a tera dark shiny talonflame, of coarse I didn't know it was shiny cause of all the sparkles but after I caught it I traded It for a shiny latias. then I caught a shiny dodou and named it kiwi (green bird fruit!)