How long the blade lasts depends on the users skill and power, some may need near constant attention, others are effectively permanent.
Sword can be destroyed if struck by its weakest point.
Known Users[]
Kevin Levin (Ben 10 series)
Misaka Mikoto (A Certain Magical Index)
Omnimon (Digimon)
Gajeel Redfox (Fairy Tail)
Edward Elric (Fullmetal Alchemist)
Risotto Nero (JoJo's Bizarre Adventure Part V: Golden Wind/Vento Aureo); via Metallica
Metal Demons (Konjiki no Gash Bell!)
Daz Bones/Mr. 1 (One Piece)
Super Shredder (Teenage Mutant Ninja Turtles 2012 TV series)
Gallery[]
Misaka Mikoto (A Certain Magical Index) forming a blade out of iron sand.
Omnimon (Digimon) can form his Grey Sword from WarGreymon's head.
Gajeel Redfox's (Fairy Tail) most powerful spell, Karma Demon: Iron God's Blade unleashes a gigantic Metal Sword.
Risotto Nero (JoJo's Bizarre Adventure Part 5: Golden Wind/Vento Aureo) using his Stand, Metallica, to turn the iron from sand around him into knives to launch at Vinegar Doppio…
…turn blood into solid iron blades.
Daz Bones/Mr. 1 (One Piece)
Super Shredder (Teenage Mutant Ninja Turtles 2012 TV series) can instantly sprout metallic blades from his body.
It's Buzarai's (Konjiki no Gash no Bell!) specialty to use the element of metal to conjure different axes.
Whenever Dalmos (Konjiki no Gash Bell!) uses their spell, Kiroro Am Begir he is able to form two large blades at the base of his arms.