If a wildcard is turned over to start a round, simply place that card back into the deck, reshuffle if needed, and turn over a new card to begin the round. Wildcards are designed to react to active play, not to set the opening condition of a round, so starting with a standard challenge keeps the game flowing as intended.

Yes, it is entirely possible to have cards remaining but no valid plays left. This can happen during larger rounds or when using larger card sets. In this situation, there is no way to continue play until all cards are discarded, even though players may still have cards in their hands. When this occurs, declare the round finished and record the scores for all cards held by each player.

No, Wildcards are meant to enable play, if you are down to only 1 card and it is a wild card, you must play the wildcard after drawing from the pile, play your card or take the penalty points

Ahh, more chaos! If the person you choose to play the 5 Card Swap on has less than 5 cards in their hand, they must hand you the cards they currently have and then pick up another five cards. This means it is entirely possible to play the 5 Card Swap chaos card purely as a strategy to increase the number of cards in an opponent’s hand.

It sure is, when playing with just 2 players, discard the change direction and miss a turn cards as these become in effective in a 2 player game