In Monster Hunter: Rise, you can refer to the following for the upgrade route of the Monster Hunter Rise dual swords:
We recommend the ore type weapon, take the bird-tickling route, and then upgrade it to the Velociraptor Double Sword.
Tickling Bird Double is directly derived from Velociraptor Double
Then, by the way, develop the fire system and take the strange dragon route. This is a double sword with dual attributes of thunder and hemp. It is very useful to assist hemp coins and can also be used later.