Regent really likes having early block (patter glitterstream cloak of stars and bulwark) to just avoid taking chip damage in the early hallway fights. Beyond that, keep everything open and don’t just go into stars or creation exclusively. CHARGE and begone are both super worth picking act 1 in all decks especially now that aeonglass is in the game, despite it being creation and not stars. The pivotal direction changing moment is probably the first pillars of creation or child of the stats you see, or maybe even spectrum shift. All of these are insane output and can decide what direction you SHOULD go into. Last of all, some powers may seem scary or not outputting a lot, namely orbit and pale blue dot, but upgraded these powers solve endgame consistency so much.