Inti, Seneschal of the Sun : Allows you to Discover 3 when it comes into play, so exile cards from the top of your library until you hit a non-land card of mana value 3 or less, then cast it without paying its cost, or put it in your hand
Dragonwing Glider Expensive MTG equipment with a very high equip cost isn't usually good, but Dragonwing Glider changes the equation by creating a token to snap onto right away
Blacks had madness as a set theme, Blood tokens, in addition to the previously mentioned set bends and cycling
Hero of the East
Its a high risk card (it dies to all removal, can easily be blanked by any flier, and might enable your opponents shenanigans) that stocks both graveyards quickly
I was very skeptical of Magic: The Gathering s rapid return to the streets of New York for a Teenage Mutant Ninja Turtles pizza party