Cheapest priced copy (Betrayers of Kamigawa): $0.49 at Card Kingdom, near mint, their price list as of .
Patron of the Nezumi 
Legendary Creature — Spirit · 6/6 · Rare · Betrayers of Kamigawa · #77
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.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
5 printings · $0.49 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Betrayers of Kamigawa | 77 | Rare | $0.49 | $7.99 |
| Commander Anthology Volume II | 72 | Rare | $0.49 | — |
| Commander 2011 | 93 | Rare | $0.49 | — |
| Hachette UK | 25 | Rare | — | — |
| Salvat 2005 | A25 | Rare | — | — |
One ruling from Wizards of the Coast
- 1 February 2005Patron 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.)