Cause I found an event jirachi that Originally belongs to Mattj on smogon. It's iv's are 31/31/31/30/30/31.
I tested it on shoddy and it said it's illegal but everyone was telling me that Mattj found it by using RNG abuse and it's suppose to be legal.
So I want to know if it really is possible that shoddy is not always correct. =/