Oops I forgot to do this yesterday. Well for some reason Nomads doesn't have a FAQ in DomBot yet, but I think that card isn't too difficult to figure out.
Guard Dog:
• When you play this, you draw 2 cards, then count the cards in your hand; if it's 5 or fewer, you draw 2 more cards.
• When another player plays an Attack card, you may play this before that Attack resolves; then the Attack still happens (unless you stop it another way, such as with a Moat you just drew).
• So if another player plays Berserker, and you respond with Guard Dog, you'll first draw 2 cards, then discard down to 3 cards in hand.
• As usual playing it means putting it into play and following its instructions.
• If you play this during another player's turn, you discard it from play during that turn's Clean-up.
Souk:
• For example, if you play Souk and have 3 other cards left in your hand, you'd get +$7 (and +1 Buy), and then lose $3 for a net gain of +$4
• You can't go below $0 but might end up with less $ than you started with.
• When you gain Souk, trash up to 2 cards from your hand; you don't have to trash any.
Berserker:
• When you gain a Berserker, if you have an Action card in play you play the Berserker; this means it will go into play, and you'll gain a cheaper card and then the other players will discard down to 3 cards in hand.
• They can still use cards like Moat then.
• If you gain a Berserker with no Actions in play, however, you don't play it.
Cauldron:
• If you gain three Actions before playing Cauldron that turn, then it won't give out a Curse.
• It doesn't matter how many non-Action cards you gained; the third time you gain an Action, each other player gains a Curse.
• This is cumulative if you play multiple Cauldrons.
• This a Treasure, so you play it in your Buy phase, but also an Attack, so cards like Guard Dog and Moat can be used in response to it.
Trail:
• When you play this, you simply get +1 Card and +1 Action.
• When you gain, trash, or discard this, other than in Clean-up, you may play it; see the When Discarded section.
• As usual playing it means putting it into play and following its instructions.
• If you play Trail on another player's turn, the +1 Action won't be useful, and you discard Trail from play in that turn's Clean-up.
• If you trash Trail, playing it means you get the Trail back; it will go into play, and be discarded into your discard pile in that turn's Clean-up.
• This still counts as trashing it; if you Remodel a Trail you can play it and then gain a Gold from Remodel, and so on.
(Additional ruling: If you gain or trash Trail during Clean-up (with Improve), you can't use its reaction.)
And even though these wordings don't change anything, here's a summary of those "non-functional changes" in Ingix's post.
-Philosopher's Stone/Diadem/Horn of Plenty: Dropped "when you play this."
-Young Witch: "Cards from that pile are Bane cards" -> "Its cards are Banes."
-Butcher: Simplified down to "You may trash a card from your hand, to gain a card, costing up to $1 more than it per Coffers you spend."
-Caravan Guard: Dropped reminder text.
-Hireling/Champion: Dropped "this stays in play" (although they obviously still stay in play forever).
-Champion: Clarifies that you get +1 Action "first."
-Mission: Clarifies that you can still buy Events.
-Encampment/Farmers Market/Temple/Wild Hunt/Experiment: "the Supply" -> "its pile"
-Settlers/Bustling Village: Dropped "look through your discard pile".
-Guardian: Now worded like most Duration effects now ("at start of next turn...until then..."). Don't worry about the wording on Monkey.
-Haunted Castle: "puts 2 cards from their hand onto their deck" -> "puts 2 of them onto their deck"