Specifically, whenever an effect asks you to draw a card and your library is empty, you lose the next time a player would receive priority (which, in practice, pretty much means on the spot , regardless of what's in play or on the stack)
These are, of course, gorgeous, and they each feature some cleverly incorporated Phyrexian symbols within the landscape of the art
Like most Pokmon cards, the value of Mudkip depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (XY Black Star Promos)
Its also powerful against a lot of the Lurrus decks, which tend to play upwards of 20 spells that cost one mana
One of the best things about individual Pokmon TCG booster boxes is how each set is completely different from the others, and its not uncommon for a new series to include new card types and Pokmon species to the game