Cheapest priced copy (Guilds of Ravnica): $0.99 at Card Kingdom, near mint, their price list as of .
Drowned Secrets 
Enchantment · Rare · Guilds of Ravnica · #39
Whenever you cast a blue spell, target player mills two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.99 to $7.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Guilds of Ravnica | 39 | Rare | $0.99 | $1.99 |
| Guilds of Ravnica Promos | 39p | Rare | $7.99 | $1.49 |
2 rulings from Wizards of the Coast
- 5 October 2018Drowned Secrets has to be on the battlefield for its ability to trigger. Casting it won’t trigger its own ability.
- 5 October 2018Drowned Secrets’s triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.