There's a good engine, as well as enough cards that are individually powerful enough to make things work when it's not coming together
This happens because my attacking creature has to deal lethal damage to each blocker before damaging the next one
Castle Locthwain What makes [c]Castle Locthwain[/c] so good is that its a land card, so you dont have to worry about it clogging your hand when you have more pressing matters to attend to in a game
Lastly, cards like Bident of Thassa trigger from combat damage to players, and a flyer deck has a good shot of getting something through unblocked, even if its small
Each attack with Arthur gets you a new creature and presumably a new triggered ability to advance your position
Commander is often referred to as the face of Magic: The Gathering for several reasons, like the sales of Commander products, how engaged fans are with the format, the fact that it's a multiplayer setting rather than the usual 1v1 scenario, and the fact that it can be relatively easy to get into with precon decks