[geraldkw]

I thought I had this figured out, but I'm not sure now.

It is my interpretation that if you have multiples of this, when you use the "once each turn" effect, you can look at X cards from the top of the deck where X is the number of copies of this card that you have in play. Then you may take any number of those cards and put them on the top and the remainder on the bottom?

The alternative is that you examine the top card and then replace it on the top or bottom, then do that again for each additional copy, meaning you might just be putting the same card you just examined back on top several times.

I tried reading the glossary and old forum posts but I didn't find an answer.

[eberlems]

It's for each of your Celebratory Toast you can look at the top card of your deck and place it back or on the bottom.
Another one right after that is a bit useless, but if you can draw, download, exchange... another one might be useful.

[MidnightLich]

Multiples are also useful if you move the top card to the bottom, because then you have a new top card for the 2nd copy. But no, they don't "combine" like you describe - each copy triggers on its own, so if you like the card being on top, the extra copies don't help.

-crp