this is actually not really worth farming for, first off its a rare drop and 2nd balder shield is straight up a better shield, you can always buy it for 4k guaranteed and a crystal +5 balder shield has 78 stability, so its straight up better, also crystal shields will never break unless you play pvp like all day every day, in my playthroughs i start with 22 durability and after killing gwyn i will end with 21, so i can easily do 22 full playthroughs of the entire game and it will never break, basically unless you plan to play until new game +23 then a crystal balder shield outclasses every other medium shield, also its alot lighter as well. all of this also applies to the silver knight shield as well btw, especially since that one is a 1% drop, so its even rarer to get in the first place and not even worth it since again, balder shield is just better in every way.

Every playtrought, i try to get this shield.

Ah yes, the perfect shield to use with the Drake sword for all the twink white phantoms out there. You'll look like a tryhard but at least they know they will be safe with you.

can this be farmed from the respawning black knights at the end of the game? i killed every knight in the game and have killed those respawning ones, like 40 times and still no shield. . .and this is with 410% item drop rate.
none of the drop rates quoted on this site seem accurate, because i get my loot far more rarely than this site says i should