Not bragging seriously how rare is it

Depends on where you got it
If there wasn't a community day event, the odds are 0.25%
If you did get it from a community day event, it's probably at most, 10%

i caught one for my dad and i think it one of the rarest out there. along with yungoos and snorlax.

I mean I found a shiny chansy a day or two ago

Not very. I have a lot of Pokemon Go shinies.