I'm actually not seeing the argument here. The 210 weapon is clearly better. It has higher hard stats (Dex and det) and an increase to a consistent stat. Whereas the Thordan weapon has lower hard stats (Dex and det) and in increase to an inconsistent stat. The correct choice is the relic considering that if you don't have another 210 weapon by now (both require raid), it will be the only one you can get.
