S20 came with the Defiance weapons (Perpetualis, Ranconteur, etc) and Recovered Leviathan weapon reprises (Imperial Decree and the class-based Swords (Throne-Cleaver, Goldtusk, Death's Razor) then S23 came with their own Wish weapons & Undying reprises (Subjunctive, Adhortative, etc) Once the Exotic Mission Rotator absorbed Avalon & Starcrossed, they both became the only (primary? there's Banshee) source for them, including their Deepsight patterns. out of their respective weapons (Avalon = Defiant & Leviathan, Starcrossed = Wish & Undying), they all drop Deepsight pattterns for them, but Avalon does not drop ONLY the Leviathan weapons. Today's TWID & inclusion of "legacy weapons" to Banshee gave me renewed hope that I might finish my collection. my throne-cleaver has been at 3/5 for a year now, plz bungie