Cheapest priced copy (Ravnica: City of Guilds): $0.35 at Card Kingdom, near mint, their price list as of .
Golgari Brownscale 
Creature — Lizard · 2/3 · Common · Ravnica: City of Guilds · #166
When this card is put into your hand from your graveyard, you gain 2 life.
Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
2 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ravnica: City of Guilds | 166 | Common | $0.35 | $1.49 |
| Ultimate Masters | 166 | Common | $0.35 | $0.49 |
7 rulings from Wizards of the Coast
- 1 October 2005The first ability triggers when Golgari Brownscale returns to your hand from your graveyard for any reason, not just when you use its dredge ability.
- 12 January 2024You can't attempt to use a dredge ability if you don't have enough cards in your library.
- 12 January 2024Dredge can replace any card draw, not only the one during your draw step.
- 12 January 2024Once you've announced that you're applying a card's dredge ability to replace a draw, players can't take any actions until you've put that card into your hand and milled cards.
- 12 January 2024One card draw can't be replaced by multiple dredge abilities.
- 12 January 2024If you're drawing multiple cards, each draw is performed one at a time. For example, if you're instructed to draw two cards and you replace the first draw with a dredge ability, another card with a dredge ability (including one that was milled by the first dredge ability) may be used to replace the second draw.
- 12 January 2024If an effect puts a card into your hand without specifically using the word "draw," you're not drawing a card. Dredge can't replace this event.