Had to math. Stealth for surprising the quasit? (1d20+17)[30] Also, perception with detect magic active: (1d20+17)[25]
Spoiler: Active characters: Show Turi Masakhet, MM Firi'Sar Throshana, ST Jessica Cooper, RoA Frederick Strongarm, AoW Elissa of the Wilds, NS Artaith Forgeheart, Grim Jannis Sotheby, RotR Stvari Inhibiraj, WotW Kern Cooke, DotMD