(Scryfall note) The land stays an Island until the flood counter is removed, even if Quicksilver Fountain leaves the battlefield
Armed Dragon Thunder is a series of "Level" monsters that all have the same effect, where, they can send a monster from the hand to the GY to tag into the next step of the cycle, LV3 goes into LV5, LV5 into LV7 and lastly LV7 into LV10
As decks can now easily thin their hand with cards like Ultra Ball, Cynthias Ambition will often mean that decks will see nearly the full potential draw from the card quite often, meaning that drawing 5 or even 8 cards with Cynthias Ambition isnt out of the realm of possibility
You can pick up a pack of 25 top loaders for roughly $5
Footage shows folks scrapping to get their hands on the merchandise
The Extra Monster Zones are only for Monsters summoned out of the Extra Deck, which you always have access to if you can meet their summoning requirements