Making players lose life while they draw cards is interesting because youre giving them more cards, but you deal damage at the same time
In Commander, Zombies have 28,072 decks registered, making it the second most commonly played tribe after Dragons over at EDHREC.com
Its a 6/6 with deathtouch and lifelink
I looked at the all, and I think I've played all but three of them at some point in time in my game playing days, as it's my 2nd favorite color combination to draft for Abedraft (a draft I have of every card ever printed save for around 15 that are too pricey to pickup)

Advanced Search Sets Random Syntax Release date: 2008-10-02 Akrasan Squire Angel's Herald Angelic Benediction Angelsong Bant Battlemage Battlegrace Angel Cradle of Vitality Dispeller's Capsule Elspeth, Knight-Errant Ethersworn Canonist Excommunicate Guardians of Akrasa Gustrider Exuberant Invincible Hymn Knight of the Skyward Eye Knight of the White Orchid Knight-Captain of Eos Marble Chalice Metallurgeon Oblivion Ring Ranger of Eos Resounding Silence Rockcaster Platoon Sanctum Gargoyle Scourglass Sighted-Caste Sorcerer Sigiled Paladin Soul's Grace Sunseed Nurturer Welkin Guide Yoked Plowbeast Call to Heel Cancel Cathartic Adept Cloudheath Drake Coma Veil Courier's Capsule Covenant of Minds Dawnray Archer Esper Battlemage Etherium Astrolabe Etherium Sculptor Fatestitcher Filigree Sages Gather Specimens Jhessian Lookout Kathari Screecher Kederekt Leviathan Master of Etherium Memory Erosion Mindlock Orb Outrider of Jhess Protomatter Powder Resounding Wave Sharding Sphinx Skill Borrower Spell Snip Sphinx's Herald Steelclad Serpent Tezzeret the Seeker Tortoise Formation Vectis Silencers Ad Nauseam Archdemon of Unx Banewasp Affliction Blister Beetle Bone Splinters Corpse Connoisseur Cunning Lethemancer Death Baron Deathgreeter Demon's Herald

On top of all that, Sun Titan is a 6/6 with vigilance