You need your box legendary Pokemon and can only do it once per day.
>>29853582
Why does that portal look like loose beef curtains?
>>29853602
I have Solgaleo in my team, but still can't go... I should wait tomorrow?
>>29853602
Only half correct. You need your box legend, but you're able to do it as many times as you want. At least, it gave me the option to.
>>29853642
Maybe it has to be daytime in game?
>>29853667
I have Sun and now it's 5PM. I Need to wait Midnight?