Thread:Anon421/@comment-37875052-20190421070347/@comment-31479589-20190424131724

It's a matter of perspective, Itu. Something as low as Metal Shuang Gou and Hermit Katana are acceptable. It's just some Epic and/or Legendary look very cool. If only getting them were easier.

Tl;dr: You can use any rarity you want for a weapon, but it's not necessary to replace the existing one with a higher version.