Legendary Creature - Warrior Zombie Liliana of the Dark Realms +1: Search your library for a Swamp card, reveal it, put it into your hand, then shuffle
If you're starting without any Zombies, it takes a very long time before you start amassing a large battlefield of Zombie tokens, and at that point, you likely could have built enough of an army of regular creatures
Master of Death Someone realized they couldnt make a zombified Squee, Goblin Nabob, since Squees immortal and all, so they made Master of Death instead
Then destroy all other creatures if its power is exactly 20
Even though my blocker has higher power than the attackers toughness and has deathtouch, Brash Taunter survives
Extended-Art Cards There are 17 extended-art cards from the set1 mythic rare and 16 raresexclusively found in Collector Boosters