Partners like Vial Smasher the Fierce and Kodama of the East Tree generate huge value by themselves, so getting multiple copies of them on the battlefield will be a massive threat
Pairing it with something like Font of Agonies turns all that life-payment into a steady stream of removal, and it has a great baseline of doubling up on fetch land activations
According to the Reddit post, their grandmother explained she bought Pokemon cards for her grandchildren to play with but also bought extra packs and cards to put away for them in the future without telling them
Upon release, Beach Court will probably be the most played Stadium in the format, and I think it wont be close, which is, I think, a good reason to put it as the fifth card in this top ten
Anybody who played during Theros Standard is going to remember that Domestication was a format staple and Connive is doing something very similar