Talk:Rider/@comment-37181921-20190728060829/@comment-37404257-20190728124634

NPs are only supposed to be artifacts or unique abilities or legends abour people. FGO is the one who made it into some sort of Limit Break to simplify the concept. As a throwaway example Beowulf would technically have two or three namely Grendel Buster which represents Beowulf's unparallel wrestling ability as he was able to kill Gendel with his bare hands naked (true story), this wouldn't normally be accessible unless his two other Noble Phantasms the Swords Hrunting and Naegling were destroyed. They are both legendary swords and artifacts in their own rights as Hrunting is is a sort of demonic sword that is able to detect Grendel and detect blood (coincidentally in the anime and original FSN, Hrunting is Emiya's arrow of choice partly because its and A rank which he can boost to A+ rank but also because it is homing due to its ability to sniff out blood), and Naegling was rumored to have been forged by the Dwarves of Nidavellir and even so Beowulf struck the Dragon with such strength it still snapped in two.

So long sotry short most servants have more than one. FGO dumbs it down to one to maintain balance and because most FGO fans are dumb gacha players rather than Fate or history/mythoology fans.