Sorin, Lord of Innistrad

Mana cost: {2}{W}{B}
Type: Legendary Planeswalker — Sorin
Loyalty: 3
Set: Duel Decks: Sorin vs. Tibalt #1 (mythic)

+1: Create a 1/1 black Vampire creature token with lifelink.
−2: You get an emblem with "Creatures you control get +1/+0."
−6: Destroy up to three target creatures and/or other planeswalkers. Return each card put into a graveyard this way to the battlefield under your control.

Sorin, Lord of Innistrad has 3 printings, first in Dark Ascension (2012). EDHREC ranks it #4,936 among Commander cards. It appears most in Edgar Markov decks (9,867 on EDHREC). 1 public deck on TCG runs it. It has 4 official rulings.

Legality

commander: legal
legacy: legal
vintage: legal
pauper: not legal
modern: legal
pioneer: not legal
standard: not legal
brawl: not legal

Public decks that run Sorin, Lord of Innistrad

Blood Rites - The Lost Caverns of Ixalan Commander, led by Clavileño, First of the Blessed

Commanders that run Sorin, Lord of Innistrad most

Deck counts from EDHREC.

Edgar Markov: 9,867 decks
Clavileño, First of the Blessed: 6,058 decks
Elenda, the Dusk Rose: 1,719 decks
Sorin of House Markov // Sorin, Ravenous Neonate: 1,299 decks
Carmen, Cruel Skymarcher: 871 decks
Tomik, Wielder of Law: 793 decks
Astarion, the Decadent: 773 decks
Edgar, Charmed Groom // Edgar Markov's Coffin: 755 decks

Often played with Sorin, Lord of Innistrad

Cards that show up in the same decks on EDHREC.

Rulings

2011-01-22: You can target a token creature with Sorin, Lord of Innistrad's third ability, but it won't return to the battlefield.
2011-01-22: If Sorin, Lord of Innistrad somehow becomes a creature, it can be chosen as a target of its own third ability. If Sorin, Lord of Innistrad is still on the battlefield when that ability resolves, it will then destroy Sorin and return him to the battlefield under your control.
2011-01-22: If a creature with undying is destroyed by Sorin, Lord of Innistrad's third ability, the undying ability will trigger, but the creature will already have been returned to the battlefield by Sorin. The undying ability won't do anything when it resolves.
2011-01-22: The emblems are cumulative. If you get two of them, creatures you control will get +2/+0.