Just as the title says i have not been able to acquire older amour sets from at least base EoF and onward from trials outside of the newest ones, i can not currently focus them as they cannot be focused until unlocked in collections. I havent been able to find anywhere to say what rates or when/how they drop weather its depending how long you are in a trials card, which passage, weather to go flawless etc. If anyone else has any evidence or know if they continue to drop weather you own previous armours or not lmk.