Bills magic on Sunday night: Allen silences doubters with a historic rally, while Ravens’ stars push back—Lamar Jackson and Derrick Henry trading haymakers before Allen answers in kind. Packers’ defense clamps Lions and boosts Parsons’ early impact, San Francisco’s D seals it with Bosa’s strip and scoop, and Herbert’s run-past-first masterclass against Kansas City signals big things in LA. Week 1’s themes: QB improvisation, elite pass rush, and a wave of up-tempo defensive schemes driving fantasy relevance.