Switch does not have the same special-card list at every table. A guide should identify its version. The expanded effects below compare a named external implementation; they are not additional GameFinder features.
In this guide
One particular expanded version
Play Cards documents its own Switch implementation with two chains, five-card black jacks, red counter-jacks, seven suit-flushes, reversing tens and black-queen hand swaps. Our study round does not adopt that entire package. Multi-card plays in particular can produce several effects in one turn.
Further reading: Play Cards: rules of its Switch implementation
Extra rules need an order of operations
When reversal and hand swaps coexist, “queen swaps” is incomplete. Who receives a swap after direction has reversed? Does an action played inside a flush still fire? A fair table resolves these questions before someone attempts a large combination.
A shared name does not mean a shared objective
Some British shedding variants are also called Black Jack, a naming overlap explicitly noted by Pagat. Casino blackjack is a different game. This Switch guide concerns emptying a hand, not building a hand near 21 against a dealer.
Further reading: John McLeod / Pagat: Crazy Eights and reported variants
What differs in the other shedding games
Crazy Eights supplies a useful wild-eight comparison; Mau-Mau assigns actions to other ranks; UNO uses a dedicated deck. Compare wild function, drawing, penalty responses and final-card rules in each. Similar-looking cards do not justify importing another guide’s rules.