Krytan axe you cannot find, you can get same skin diff mods tho (Hand axe, White reaver)
Spears are insc only and mursaat spears are customized to account s cannot be traded (except few ultra rare expections, never seen spear, if its the same mursaat spear i think about from Bonus mission pack)
Swords you cant get OS eternal, obisidan, elemental, icy dragon sword, crysta or legendary sword.
Shields can drop OS all mods but summit warlord/magmas are extreamly rare, aswell as zodiacs
