Serah Farron is another interesting card, since it allows us to cast bigger spells by reducing the costs of legendary creatures
Double Take is one less card drawn now than others like Jace's Ingenuity
As far as I can tell, there's no difference in rewards between the two, it's just a tacit acknowledgement that you're up against opponents who'll probably know their stuff, or not
As is the case with most complex decks, however, it is very rewarding to master the play patterns and win games with this sort of deck, so if you like puzzles and tutoring lands I recommend giving it a try
You see, Alpha Black Lotus may be the most valuable card ever, but it's certainly not the rarest
To make things worse, one of its attacks does 100 damage and the other does 60