As with the others, it might be a good idea to check out Japanese versions as theyre far better to look at, with a shinier finish and a silver borderline
For example, if you cast Junkblade Bruiser (a creature with a mana value of 5 and an ability that triggers whenever you expend 4) by paying its full cost of five mana, you'll already have spent four mana on spells before Junkblade Bruiser enters, and therefore its ability that triggers whenever you expend 4 won't be able to trigger at all that turn.
While the two-faced layout was a huge gain to Day/Night, it didn't solve the fundamental problem
They're just ordinary creatures with no color
Die-hard collectors are camping outside of local card shops for a chance to purchase the latest sets and booster boxes
If you exile a land card, you can't play that card