So I was watching Penniless Player and he was just talking about how high-cost cards are powerful but are balanced by the minimum turn they must be played.

I'm probably not the first to think of this, but do you guys think that you could make some interesting designed cards if you made cheap cards that can only be played on/after turn X?

I'm not good at making cards here, but the gist is You have a card that costs 2 but has exceptional stats/effects, (8/8 minion, or spell that has some cool/powerful effect in conjunction with other cards) but you see the keyword Halt (8) Meaning you can only play that card once you have reached turn 8 (1 turn= My turn & Opponents)

I think this would be cool for combo decks to really do some cool stuff that doesn't just end the game on turn 6 or something, you know?

I'm not saying the idea is perfect, but I just wanna talk about ideas for HS, please start a convo with me here :)