Mirari's Wake is also great because it isn't just a mana ramp card, it also gives all your creatures a minor buff, making it great for Selesnya token decks
Cast Phyrexian Dreadnought for one mana upside down, or tutor it up with Demonic Tutor if you don't have it already
One of the many reasons it stands out above the rest is the full creative freedom that comes with crafting a deck
Combo players love running this card to refresh their creatures tapping abilities
Kefka, Court Mage / Kefka, Ruler of Ruin Flickering Kefka, Court Mage over and over seems like a great way to deprive your opponents of resources
If you want to play fair (and avoid problems in upcoming pro tournaments), you'll want to make sure your cards are regulation-size