Worse you'd rapidly run out of relics if you changed items that frequently, and marks spent on several empowerment scrolls for each, and a delving, and not have time to accrue legacy scrolls that you want. Crafting relics daily to turn into shards wouldn't generate enough for all the melding you'd want to do. Vice-versa one generally replaces their most contributing legendary (weapon for most) every five or ten but tools might not change for twenty or until cap. It depends on if the legacies have ratings affected by level or cd/percent where level is irrelevant.
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