Other than the pull rates and the icon at the bottom, they look similar to each other, though often the higher rarity cards also include better play mechanics
As you attack with creatures with infect, opponents are more apt to blocking with their creatures to decrease how many more poison counters are dealt to them via combat damage
Singers and songs are at the core of the deck, with lots of Evasive keyword abilities to form your defence
The Red one just has a 1/1 body, but it can tap with three mana to fight, and when it is dealt damage you can redirect it
This eight-drop mythic rare in White may have a smaller 3/3 Indestructible body but makes on arrival and four turns of play not one, not two but
But unless you delve a little deeper into the rules, sometimes the details of how these work are completely lost on you