Board Thread:Questions and Answers/@comment-185.45.70.199-20171011235843

How can archer use weapons like caladbolg/ durandal / rho aias without having seen them in his "natural lifespan"? I mean even if he's summoned in the past as a counter guardian and he sees it and learns how to "trace it" after the whole deal is over he should lose all the memories like every other servant in the throne of heroes (saber is the only exception and you know why). Is there a valid explanation? Thanks in advance :D  