The cost of a tier one or tier two deck more than tripled in a two week time frame at the start of October, coinciding with the release of Battle for Zendikar
Its smaller brother, Hedron Crab is still good, but requires you to target one opponent at a time
So, with cards that give you the ability to draw and then discard one, or even when an opponent makes you discard a card, you just get to swing on people for, relatively, free
Splinterfright Creature Elemental Trample Splinterfright's power and toughness are each equal to the number of creature cards in your graveyard
Three more colorless commanders are joining the list, with The Capitoline Triad, Marvin, Murderous Mimic, and Ulamog, the Defiler all being interesting a very strong card choices to build around
You can round that up to 500 and easily count the number of cards in a stack of Magic cards