Klay Thompson arrived at Oracle Arena on Halloween night decked in a complete Jackie Moon uniform, spinning a red, white and blue basketball on his index finger to wholly depict Will Ferrell’s iconic character from Semi-Pro. Warriors forward Alfonzo McKinnie strolled into the stadium draped in a full-body Deadpool costume. Golden State’s wings shed their ensembles before the Warriors and Pelicans tipped off that evening, although New Orleans guard Jrue Holiday took the floor wearing a bit of a costume himself: a black, karate-style headband, the loose ends dangling below its tie in the back.