The choice to help Astarion become the Vampire Ascendent in Baldurs Gate 3 is a controversial one that divides fans of the vampire companion. Once ascending, Astarions character becomes more sinister and controlling than he was before the ritual, and the pre-programmed facial expressions in-game make that clear. Players can continue to romance him after hes ascended, though Tavs facial expressions will unveil the sudden shift in their power dynamic.