While you dont need the in-depth knowledge of a judge, you should be both familiar with and up to date on the following aspects of Magic: The Gathering : Rules of how to play The sanctioned formats promoted by WotC (Commander, Standard, Pioneer, etc.) Top decks, strategies, and cards within sanctioned formats This will help you not only understand why certain cards are desirable compared to others, it will also hone your instinct for what might make a good card in the future
Well, Simulacrum Synthesizer can do what Karn used to do for cheaper mana cost and with less setup
Where as Moat effects all players (including you) equally
(It's an artifact with ", , Discard a card, Sacrifice this token: Draw a card.") , Sacrifice another creature or a Blood token: Each opponent loses 2 life and you gain 2 life
As a deck that cares about Experience Counters, Kelemne acts as a threat that can accelerate your main game plan in the 99