Once their HP runs low, you can simply switch in the Lapras ex or Articuno ex you have built to finish off the battle
Make sure you get a short version (the metal connector, not necessarily the circuit board) and that the pin header is soldered onto the module already (the pin header is the black bar with pins sticking out)
It's an open-ended question, but if you can't answer it everything else in the deck won't matter
There are a number of Latin American players who are not as well known in the rest of the world, either because they dont communicate as much with the rest of the world due to the language barrier, or because for economic (or other) reasons, they dont travel as much as players from other regions
No need to buy multiple protectors for each individual card
This card's effect reads Add 1 Digimon card and 1 Tamer card [...] among them to your hand, so you must add as many cards to your hand as possible