When does a card stop being a card? – October 18, 2020 at 07:42PM

Are minions on the board, equipped weapons, active secrets and quests, and played hero cards still considered cards? In a non-digital card game I’m assuming they would be since they still look the same, but I’m not sure if the fact that they no longer look like cards in Hearthstone means they are not cards or if that was just a design choice. For example, what would a spell that read “Destoy a card that costs 5 or less mana” be able to destroy? I’ve just been thinking about this for a while and am looking for other perspectives.