Quick Question about seraph items

Do seraph items (like interfacer) only drop in UVHM or can they drop on NVHM & TVHM?

Some can only be bought, some can only be dropped, some are both but only on a certain difficulty. Just do some research to figure out which is which. It’ll be quicker than waiting for us to tell you each one

I’ve had the Stinger drop in TVHM from the Ancient Dragons. It’s rare, though! You can’t get seraph crystals from the raid bosses in anything other than UVHM (but possibly from Tiny Tina’s slots in other modes?)

Edit to add: You’ll probably get more information in the BL2 Loot & Weapons section.