Especially when people stack these all the time, it really slows the game to play them individually one at a time.
Oh and it's undervalued too. Like it's better than silver. Probably should cost 3 too.
I would like a more general "play all of these cards with the same name" option. Often I want to play all my Silver or some other treasure for various reasons.
Maybe I want to buy some Grand Markets. Then I would do play-all-of-these on my Gold, Silver and maybe something else.
Another time I have a lot of treasures I am considering if one of my buys should be Farmland and trash a Gold. So play-all on Copper, Silver, but not on Gold.
Another time I'm manipulating which treasures to play because of a Haunted Woods played against me. Well, at least I'll play-all on my Copper while I am considering what next to do.
Etc.
There could be a play-all-of-these symbol in the corner of a the rightmost card of that name in your hand.
The easiest and most useful would be to have this for Treasures, but it could certainly be useful for Actions and Nights as well. Say begin your turn with play-all on Alchemists. (The play-all shouldn't just be about those you had in your hand when you started, but instead play-all should mean continue to play a card with that name from your hand as long as you can, which would include newly draw ones.) Of course this wouldn't always be the right thing to do, but often, and then you could save time with the feature.