Midnight Potions you say?
Well for starters I welcome new items or cards or any new items into the game as it adds to the meta and expands the game which mean more involvement from the community and players. It adds a new level of depth and strategy (some more than others).
I am not a whale so I hate that I probably won't ever have (m)any of them so when I hear about these cool new items like the Midnight Potion I get sad for myself haha.