Everything's optional
However, the returns calculated in this analysis match closest (after estimated costs) to the S&P 500 Index during a similar period
Once your life total is low enough, Deaths Shadow outgrows virtually any other creature in the format, which means that it can be very tricky playing against the card as you dont want to make this monstrosity too big before you can actually handle it
Sunstone AND Glacial Crevasses Check out this pair from the same set
Cavalier of Dawn isnt the strongest of the bunch, but it does pack a punch in the form of its pseudo-Generous Gift effect
With some careful deck building (mostly playing some big card-draw spells you can cycle into with Unpredictable Cyclone to make sure you always have some cycling cards in hand), you should be able to mostly play your entire deck in a single turn by cycling, casting stuff (including card-draw spells) for free with Unpredictable Cyclone, drawing into more cycling cards, and cycling them to trigger Unpredictable Cyclone against and again until you've essentially cast your entire deck