Live market values for cards in every official region pick yours to start
Im already getting offers and stuff to travel out of the country
You can only choose one of them, but each is potentially pretty powerful and useful in different situations
Yes, a well-built Water Deck can be very effective in tournament play especially if you have a solid strategy and can counter popular decks like Fire and Grass
I would pick 3-4 really important creatures, like Vito and indulging patrician and bloodthirsty aerialist, for the deck's theme and include 4 copies of them (except legendary creatures since you are only allowed to have one of them on the board at a time and you don't always want to draw a second one to just hold in your hand forever, so maybe drop it to 3(?) or keep at 4 if you think it's important enough)
The upside, however, is that it allows you to copy your powerful tokens and overwhelm your opponent, which makes Populate cards worth adding to your deck