The item and the condition

During one of there breaks vael saw Ren seeing nearby villagers practicing swordsmaship he reached Ren and asked what you want a different lightning style ?

 Ren said yes I want a different fighting style close combat using swords vael said you and using a sword with that poor control that is either brilliance ... or suicide

 Ren smirked and said probably both then Ren revealed his next destination

 he said that's why I am going to the dwarves so they can make me a katana 

vaels expression darkened he said kid dwarves don't make weapons for anyone especially katanas 

their weapons have a Will of their own if you are weak they the weapon might kill you 

then he gave Ren a black rod black lightning exploding from it violently  and said if you are going anyway then take this with you if they recognize it they might hear you 

Ren travelled for weeks when he finally reached the kingdom he saw giant forts made with metal stronger than iron lava flowing through the city like veins

 then guards stopped him told him visitors are not allowed to go into the depth of the city Ren showed them an ID made for him by vael the Guards let him go 

then Ren travelled through the city to the oldest and the most skilled dwarf named  brok ironvein behind him crimson fire burning hotter than magma Ren gave the rod to brook black lightning exploding form it brok said no way ... the lightning dragon king... zephyron it's his limb 

how did you get this Ren said an old man gave it to me he asked brok can you make me a katana brok said :- huh... a human wants a dragon bone made katana you have courage( his expression darkened) 

yes I can but I need three things from. You you see it will not be easy for me to make it so you get me the materials :-1 50 magic ores specially embuded in mana 2 something that can give shape and stabilize the sword 3 2 million gold coins Ren said but I only have 1 million brok (crossed his arms ) said fine 1 million 500 thousand my final offer if you want the rest go to the earth tiger dungeon you might as well get the other materials if you come back alive that is