I don’t see the sense in removing cards from the card department so you can put up a seasonal range.
You can’t sell cards from a draw or a box in the back room. In those locations it is dead stock.
My experience is the best location for seasons is on impulse purchase stands, at the front of the shop … pitching the seasonal opportunity to shoppers visiting for some other purpose. Oh, and a carefully selected small range at the counter.
Taking everyday or lifestyle cards off a permanent fixture to make way for a seasonal range is harmful and should be resisted.