Patron of the Nezumi

Mana cost: {5}{B}{B}
Type: Legendary Creature — Spirit
Power / toughness: 6 / 6
Set: Salvat 2005 #A25 (rare)

Rat offering (You may cast this spell any time you could cast an instant by sacrificing a Rat and paying the difference in mana costs between this and the sacrificed Rat. Mana cost includes color.)
Whenever a permanent is put into an opponent's graveyard, that player loses 1 life.

Patron of the Nezumi has 5 printings, first in Betrayers of Kamigawa (2005). EDHREC ranks it #18,548 among Commander cards. It appears most in Iname, Death Aspect decks (381 on EDHREC). 2 public decks on TCG run it. It has 1 official ruling.

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 Patron of the Nezumi

Devour for Power - Commander 2011, led by The Mimeoplasm
Devour for Power - Commander Anthology Volume II, led by The Mimeoplasm

Commanders that run Patron of the Nezumi most

Deck counts from EDHREC.

Iname, Death Aspect: 381 decks
Ink-Eyes, Servant of Oni: 74 decks

Often played with Patron of the Nezumi

Cards that show up in the same decks on EDHREC.

Rulings

2005-02-01: Patron of the Nezumi’s ability triggers even if an event puts this and multiple other permanents into the graveyard at the same time (Wrath of God, gang blocks, etc.)