If your Marco is KO'd, you can bring him back to the board in rest mode by sacrificing a "Whitebeard Pirate" character from your hand (and normally, with this decklist, you'll have several in hand)
Adding Lovestruck Beast as another clock is completely reasonable
I think in this case, the previous cards with Magmortar firing were deemed acceptable because they could be passed off a fantastical Pokemon attack, while perhaps this time TPCi thought that the smoke was too suggestive of a fired hand gun, which is a type of weapon that is more accessible to children than Pokemon fire or a mortar/bazooka, and changed the pose for that reason
ARC-V, it was inserted into a mechanical device and used to brainwash Akaba Leila
I am happy enough with a land that taps for 2, I don't need it to tap for 4 or more to be good enough
However, one of these field spells completely synergized with one of Yu-Gi-Oh 's fan-favorite retro decks