SAN FRANCISCO – Stephen Curry dug up his typhoon energy. Draymond Green window-shopped a triple-double. Al Horford was raining 3-pointers as if he were alone on the court.The uncles at the core of the Warriors were vibrant Friday night at Chase Center, and their work in the NBA preseason finale fed a 128-118 victory over the Portland Trail Blazers and in the process sprinkled some encouragement five days before the regular-season opener.

Playing in all four quarters, Curry exited with 8:29 remaining after tying his preseason high in assists with five and posting preseason highs in points (20), rebounds (four) and, perhaps most significantly, minutes (26).

“He’s on a different routine this camp,” coach Steve Kerr said. “And we’ve ramped him up more slowly, so he’s been kind of working his way to this point. He’s not yet where he wants to be, but he’s on track.”

After shaking off a substandard first half (seven points, 3-of-12 shooting), Curry in the third quarter looked a lot like the point guard who has dazzled the NBA for the better part of two...