https://vampire.survivors.wiki/w/Hugh_Baldwin

Mightve messed up some of the swords.

As most of the base weapons already count for this secret, adding up to more than six, and half of them can be purchased from the Master Librarian, the player should avoid picking ones that need to be evolved. While evolving and uniting is discouraged, be careful with uniting Icebrand into Ninth Circle This content requires the Ode to Castlevania DLC to access, as it does not count as a "sword" unlike other unions of weapons that can be purchased from the Master Librarian; Alucard Shield's hidden "sword" weapons do not count if it absorbed any.

I chose Queen Sigma and used Victory Sword, the 3 I could buy from the Libraian, the sword that evolves from the cross, and Alucart's Sworb/Alucard's Sword. And I didn't evolve any of them except for the Cross Sword (because Cross itself does not count) and maybe Alucart (because first 2 stages of it count and there is no way to avoid it unless you banish it/don't level it)

also dont forget there are existing sword weapons sold by the Master Librarian which said update gave them evolutions, BUT DO NOT EVOLVE THEM as it will void them out of said Secret's requirement (the Pocket Knife's evo does count towards said Secrets fulfillment though)

If anyone want the easy way of solving this:

Queen Sigma Starts with Victory Sword
Then you can get castlevania swords only =
Alucard Sworb, Tyrfing, Valmanway, Icebrand and Sword Brother.
The two first one can be obtained by level up
The other three can be bought immediately from the librarian

Does evolving into the Shield after getting several of the other evos still count for this, or no?