Horse is an Action card from . It is a one-shot non-terminal draw card, similar to from ; but unlike Experiment, it is not in the Supply, and therefore can only be gained in more restricted ways.
 Official FAQ
 List of cards
There are 8 Kingdom cards that use Horse:
In addition, there are 4 landscapes that use Horse:
does not use Horse, but lets any Action be like a Horse instead.
 English versions
|| +2 Cards
Return this to its pile.
(This is not in the Supply.)
|| March 2020
 Other language versions
Horse is a non-supply
pile. There are 30 of them. You get one via a card saying "gain a Horse" or something. If the pile is empty you can't gain one, but let's hope that doesn't happen much. So Horse is a one-use ; it puts you up a card and then is gone. Or, you know, you don't have to play it; you can Remodel
it or something. It's there for you. Once in your deck, it's just like , from ; it turns out, they were experimenting on Horses. Eight total kingdom cards
use Horses, and four landscapes
 Secret history
The other idea was for a particular way to do "+1 Card tokens
." I considered them for , but it didn't sound great to have a pile of tokens you could constantly consider cashing in for cards. What I ended up doing for Renaissance was , which just happens at the start of a turn. But another approach was to have a pile of one-use
you could gain. It was like a +1 Card token, except different in all the ways it's different - you can only use it when drawing it, you can it, and so on. There wasn't room for a big pile of those in Renaissance, though it got . So this was another thing to try right away, and right away I liked it. Horse itself started and ended costing , but I tried having it cost , to make it weaker with trash-for-benefit
. I preferred it being stronger there.
The first two cards using Horses were "Gain 3 Horses" and "+1 Action, discard any number of cards for that many Horses." They both immediately showcased the beauty of Horses. "Gain 3 Horses" is like ... but it doesn't draw dead cards, and doesn't draw at all the first time you play it, and well more differences, and stuff. It was a pretty neat variation on and still really simple. And then the variant was nothing like . It was pretty neat too. Well as you may have noticed, these cards aren't in the set. They both just produced too many Horses. Another way "Gain 3 Horses" is different from is, it takes longer to resolve - not just playing it, but playing it and playing the three Horses. So in the end there are "Gain 2 Horses" cards, but no 3, and only gets to really go nuts gaining Horses.