Lets look at some examples: Confront the Past has a mana value of 1, but if you cast it for X=4 then it will have a mana value of 5 (4+1) on the stack
It should be noted, the main Hourglasses segment has a cap of 10 exchanges each
up to 1 of your opponent's Characters with a cost of 5 or less and up to 1 of your opponent's Characters with a cost of 3 or less
This creates a damage loop, and because you take no damage, all opponents will die, thus ceasing the loop because you won
However, they are not tapped in order to defend unless specified otherwise by rules text, remaining upright
Price: $77.99 #5: Emrakul, the World Anew (Foil Etched) Among MTGs most memorable threats, Emrakuls return was always going to lead to a huge amount of interest from MTG players