Hello !
The rules states that you can't have more then 2 cards with the same name. I just wanted to make sure that it applies to Strange solution since there is 4 kinds (Unidentified, Fist, Head, Feet)
I already upgraded 2 x Unidentified ones. I still have 5 exp so my process was to put 1 x Unidentified Solution (1 XP) and upgrade it again to another Feet potion (4 XP) for a total of 3 in my deck.
Sadly I think I would be wrong in doing so but I just wanted to make sure.
Thank you lads !