Here we have pretty much the industry standard for magicians bicycle playing cards.
Bicycle blue standards
The standards, red or in this case blue. Best bang for your buck. Good quality cards and if you pay more than a fiver for a deck then you are being had. You wouldn’t be so precious about them as a more expensive pack so happily mutilate them to make gaffs etc.
Blue standard spread, back of tuck case
They are available in a variety of colours, i love the green rider backs on account of being a big mad mick.
Green rider back
These come with gaff cards pre made, so tricks in mind of the designer then.
Pink face, double back, blank face, joker
Basically buy a brick of these, The Royal Road to Card Magic and get very frustrated 🙂