Artisan of Kozilek

Mana cost: {9}
Type: Creature — Eldrazi
Power / toughness: 10 / 9
Set: Commander 2014 #62 (uncommon)
Price: $0.66 USD

When you cast this spell, you may return target creature card from your graveyard to the battlefield.
Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents of their choice.)

Artisan of Kozilek has 14 printings, first in Archenemy (2010). EDHREC ranks it #1,219 among Commander cards. It appears most in Ulalek, Fused Atrocity decks (18,531 on EDHREC). 7 public decks on TCG run it. It has 2 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 Artisan of Kozilek

Devour for Power - Commander 2011, led by The Mimeoplasm
Devour for Power - Commander Anthology Volume II, led by The Mimeoplasm
Eldrazi Incursion - Modern Horizons 3 Commander, led by Ulalek, Fused Atrocity
Eldrazi Unbound - Commander Masters, led by Zhulodok, Void Gorger
Mirror Mastery - Commander 2011, led by Riku of Two Reflections
Peer Through Time - Commander 2014, led by Teferi, Temporal Archmage
Riveteer Rampage - New Capenna Commander, led by Henzie "Toolbox" Torre

Commanders that run Artisan of Kozilek most

Deck counts from EDHREC.

Ulalek, Fused Atrocity: 18,531 decks
Zhulodok, Void Gorger: 16,344 decks
Animar, Soul of Elements: 7,357 decks
Rakdos, Lord of Riots: 4,964 decks
Ultima, Origin of Oblivion: 4,530 decks
Henzie "Toolbox" Torre: 4,522 decks
Herigast, Erupting Nullkite: 3,907 decks
Kozilek, the Great Distortion: 3,288 decks

Often played with Artisan of Kozilek

Cards that show up in the same decks on EDHREC.

Rulings

2010-06-15: Annihilator abilities trigger and resolve during the declare attackers step. The defending player chooses and sacrifices the required number of permanents before they declare blockers. Any creatures sacrificed this way won't be able to block.
2010-06-15: If a creature with annihilator is attacking a planeswalker, and the defending player chooses to sacrifice that planeswalker, the attacking creature continues to attack. It may be blocked. If it isn't blocked, it simply won't deal combat damage to anything.