Then you have the need to create cards that destroy that whatever it is, it makes sense to carry tech cards in games like magic because your hand size is so much bigger to start with and you don’t need to play every card from hand, you can hold onto things generally. If they want to make more things you cannot interact with without carrying a card that you won’t be able to justify including in your deck then that would be a rather interesting design choice. I’m expecting something very simple because when they say stuff like “new and exciting card” or “cool feature” this is just their way of communicating regular ideas.
Though I’d be amped up if they were finally going to introduce a graveyard mechanic or something.