Extended-Art Cards There are 17 extended-art cards from the set1 mythic rare and 16 raresexclusively found in Collector Boosters
Then destroy all other creatures if its power is exactly 20
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
The problem with this is threefold: many of the best alternate win conditions are too expensive for our purposes, the alternate win conditions we do have access to are pretty difficult to pull off to begin with, and none of them synergize with each other
If you get it, you should feel free to switch to an alternate Commander, as many of the decks have the best guy off in hiding
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