Missing some cards when I installed the new patch, I can’t find them in both normal and wild format!!!
Can anyone help me???
Are these cards the one from Doom in the Tomb event?
They are meant to be gone. They were only a loan as part of the event, and the event is over now. There is more information about that in the patch notes if you need it. 
Some mage cards like flamewaker and some other cards. I am sure they are not supposed to be gone (┬＿┬)
Did you owned Flamewakers before the event? (Blackrock Mountain)
Doom in the tomb introduced 28 cards from wild into standard, they created new versions of these cards with no set attached to them, you can look for the complete list on the forums, but this included cards like flamewalkers, babbling book, sylvanas, ragnaros, etc. All of those cards have been removed now, if you owned those cards before, those copies should still be in your collection, but the freebies are gone now.