mtg cards rarity Guide - Magic: The Gathering Understanding Card Rarity in MTG:

Just having Necroduality in play means double the zombies, double the enter the battlefield triggers, double the fun

"Wizards Is Releasing More Magic: The Gathering Sets Than Players Can Keep Up With"

Since there's no better source than the actual emails, I'll be quoting them liberally throughout this article (in the cases where we need to reserve an idea for the future, the text will be replaced with bracketed italics summarizing it)

Land Color tag templates(None) Zhalfirin Void When this land enters, scry 1

Since it has X in its cost, it can scale it up and cast it at any point in the game

Tom Bombadil How good will this deck be