Hoard Question

[Bampop]

Yes, it's three additional treasures immediately. No matter when you draw it. As soon as you see it, play it.

[Clipper]

And in that regard, it is different to a Curse. Hoard! and Divine Intervention are cards that must be played as soon as you get them, however you get them. Curses only activate immediately if you draw them while Kicking Open the Door.

And seeing as you mentioned the Treasure draws, you draw those Treasures for Hoard! before doing any of the Treasure distribution (so there will be two more Treasure cards than you originally thought).

[bonetm]

Originally Posted by Bampop

Yes, it's three additional treasures immediately. No matter when you draw it. As soon as you see it, play it.

There is an exception to this, listed in the FAQ:

Originally Posted by Munchkin FAQ

Q. What if I have to choose between cards and one of those is Hoard?
A. If a card makes you draw and choose between cards, and Hoard is one of those you have to choose between, you do not play Hoard until you choose it as the card to keep. Then it is played immediately.

[thedag]

so if you get it at the beginning of the game dealt to you then you draw three face down treasure cards.
If after combat it depends on if you had a helper. If no helper then face down (unless the monster says otherwise) if you have a helper then they will be face up before distribution according to agreements.