So i used a mass outbreak in the terarium and found a ray of hope
I used revavroom (to start his redemption arc and also my other pokemon lost their health in auto battle after defeating one) but hope was being lost, faster and faster. Until it said the outbreak pokemon had dispersed. I was so upset but i decided there was no harm in trying to send my revavroom to auto battle the other minior who were left and suddenly, the symbol for when my Pokemon doesn’t want to battle, it came up. I checked the minior and i was so happy! It was the violet core and now i finally have a shiny minior but its funny how i almost gave up before i found it!
So glad
Now i have a total of 9 (10 if pla counts) shinies:
(Haunter)
Tatsugiri stretchy x3
Tatsugiri curly
Tatsugiri droopy
Paldean Tauros combat breed
Riolu
Comfey
Minior