NEW YORK -- The 3-on-3 Unrivaled league will crown its second-ever champion Wednesday night when No. 1 seed Phantom BC and No. 2 seed Mist face off at Miami's Sephora Arena. Phantom knocked off No. 6 Vinyl 83-75 behind Kelsey Plum's 31 points, and Mist mounted a 16-point comeback over fifth-seeded Breeze 73-69 in a pair of semifinal games at Brooklyn's Barclays Center. The semifinal games were played in front of a sellout crowd of 18,231 after the league announced the last-minute venue change on Feb. 13. And the players delivered two close, entertaining games, with Arike Ogunbowale sealing Mist's victory with a game-winning 3. "Everyone was putting on a show," Plum said, "and that's what you want for the fans." The night also marked a homecoming for Unrivaled co-founder Breanna Stewart, who plays for the New York Liberty. Fellow co-founder Napheesa Collier was in attendance, as were other league stars and celebrities that included Ashton Kutcher, Hilary Knight and Jason Sudeikis.…