I used to do this trick to open a board meeting, as an ice breaker.... But can't remember what decks I used.. any help?

I would have the victim select any card (say from a blue deck) - and tell him and the group that I would predict his card.. I would then show the group (not the victim) that the entire deck was the same card - say 10 of hearts.

I would pull out my prediction card from a red deck -and put it face down on the table - he would then show the card - say 5 of clubs - so everyone would think I screwed up - but of course the 5 of clubs would be on the table.

what gaff decks do I need?

Thanks
David

The "McCombical Deck" comes to mind. Don Alan's "Big Deal" is the condensed version.

McCombical it is.

There's also a jumbo version of McCombical. I don't know how big the group is you're performing for.

Zebatiann is correct - albeit more often than not, the Jumbo version of McCombical only uses a handful of cards and not a full pack.

The jumbo version is not as strong, because it doesn't use a whole deck, like Merc Man said, but when performing for a large group, the jumbo size is rather handy.

I alway's like Big Deal by Don Alan.