DISPLACER KITTEN Any number of combo cards could have been on this list: Thoracle, Labman, Peregrine Drake, Jace, Wielder of Mysteries, to name a few
Why Flair Is So Disappointing Flair Is Too Expensive And Uses Up Too Many Resources, With Little Payoff All the effort that needs to be put into a small animation effect during battle is disappointing, to a point where there should be a different feature to use duplicate cards for
Its also pretty darn effective at protecting users who are purchasing expensive trading cards (and other luxury items like purses, watches, etc)
This also gives all of your artifact creatures in your graveyard encore equal to their mana cost, so you'll attack each foe with a copy of that dork with haste, and they get sacrificed and you exile the card so it's a one-trick pony
#6: Approach of the Second Sun Approach of the Second Sun, one of my favorite cards in Cube, helps you stabilize after a rough start or prepare for the incoming ruckus