Please remove Shuffle being able to draw the same card.

[Kumori_Kumo]

For the people who are talking about computer RNG: If you have six actual cards to draw, and you shuffle one back into the deck, there's really no practice currently in card games/fortune telling that would give you the same card again. You don't shuffle the whole deck for one card. Unless the astrologian has a deck full of the same six cards copied four times or something, which strikes me as staggeringly dumb. There's no way for this to happen and your character not to seem like a total idiot. Which is reason enough for me to say this is definitely an oversight, to say nothing of the frustration one must feel in using an ability which has an aspect that makes no sense.

[HeavensSword]

For the people who are talking about computer RNG: If you have six actual cards to draw, and you shuffle one back into the deck, there's really no practice currently in card games/fortune telling that would give you the same card again. You don't shuffle the whole deck for one card. Unless the astrologian has a deck full of the same six cards copied four times or something, which strikes me as staggeringly dumb. There's no way for this to happen and your character not to seem like a total idiot. Which is reason enough for me to say this is definitely an oversight, to say nothing of the frustration one must feel in using an ability which has an aspect that makes no sense.

Splitting hairs at this point, but 6 cards isn't really much of a "deck". I actually would expect there to be 3-4 of each card.

Regardless, I think it would be nice if shuffle prevented you from drawing the card you just returned, but I don't think it is wrong to draw the same card in a row (if you haven't used shuffle).

[Kumori_Kumo]

Splitting hairs at this point, but 6 cards isn't really much of a "deck"

A deck of cards being larger is a design to a) give more hands to more players, and b) make it hard for players to predict the next card. Seeing as this particular 'game' has only one player (the astro) who is also the dealer, it actually doesn't require a bunch of cards; it's more of a wheel-of-fortune type situation where there's only a few possibilities and the singular or two card draws are the trick.

I don't think it is wrong to draw the same card in a row (if you haven't used shuffle).

And when you store/use a card like that, it's a slightly different symbol, meaning it's probably some manner of token instead of the card itself. It might be a slight stretch, but I could see a Royal Road being cause for an actual shuffle after you've placed a marker, especially in a game with this few cards.

[Violin]

3 1 1 4 1 1 4 3 1 3 1 1 2 6 3 6 6 6 6 5 1 5 4 5 6 5 6 3 1 5 4 3 4 2 6 5 2 2 2 1 4 3 3 4 1 3 2 4 3 6
4 2 3 6 4 5 3 1 1 5 2 5 4 2 4 1 3 3 6 3 6 3 4 1 5 2 3 4 5 5 6 6 1 6 1 2 4 4 6 1 3 6 5 4 1 3 6 2 2 4 5 2

1 - Spire 19/100
2 - Bole 14/100
3 - Balance 19/100
4 - Arrow 16/100
5 - Spear 14/100
6 - Ewer 18/100

This is just a sampling of 100 card draws/shuffles when off CD. I mean it's pretty much even in a larger pool. The problem is that when you get stuck with a small sample that is filled with majority of one number it feels like it's not random.