The fact that other players in their immediate group are unlikely to be playing more than one or two similar cards deepens that sense of pride in the performance of their pet commander/mechanic/decklist
Like the real TCG, secret rare cards are reprints from the main set, but with special artwork that overtakes the entire card (coined "full arts" by fans)
All three of the wrath protection spells are expensive
If youre looking for upgrades Id suggest some inclusions like Birds of Paradise, one or two mana dork elves like Elvish Mystic and Llanowar Elves, and some better lands to make sure you're hitting your colors (and enough of them)
The Amber and Amethyst deck is for players who like having a lot of characters out at one time, while the Ruby and Emerald deck comes with a dash of control and counter abilities, meant to frustrate opponents as much as possible
This is one of the weirdest lands ever printed