Also, Purify is meant to be cast with the Mage Wand, same as pretty much all of the incantations, so a second isn't necessarily needed.
Keep in mind that switching spells on a wand requires you to spend precious actions and mana which are generally better used elsewhere.
I also notice you have only 1 Mage wand.
Just like with your Sectarus in your other post you put a lot of pressure on 1 card,
so allow me to give you a small bit of advice : make sure you have
multiple copies of key cards in your strategy and preferable also have a way to somehow defend them or replace them effectively with something else so that your strategy doesn't fall flat if you lose that card.
Eg, you might need only 1 Cervere in a book ( but have some other creatures to support/replace him ) but it might be handy to have 2 or even 3 Sectarus in your book if the card is so important.
Another tip : Use two Mage Wands and let the Battle Forge replace one by the other when needed so you don't lose a mage action on it.