To begin with, the end step is not when the turn ends
While this spell does cost one more mana than some previous versions, it's not a bad trade when you consider the value you get from flipping the Siege
One of these decks, Sliver Swarm, focused on all things Slivers, as you might expect
Sorin, Vampire Lord The last of the black planeswalkers from a precon deck, Sorin, Vampire Lord at least has a good ability in the -2, making a Flametongue Kavu impression while gaining you some life to stabilize
You can only use each effect of "Mutiny in the Sky" once per turn
It was always very specific, and the content aimed at laymen was practically non-existent