Cheapest priced copy (Dragon's Maze): $4.99 at Card Kingdom, near mint, their price list as of .
Render Silent 
Instant · Rare · Dragon's Maze · #96
Counter target spell. Its controller can't cast spells this turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $4.99 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Dragon's Maze | 96 | Rare | $4.99 | $8.99 |
| RNA Guild Kit | 18 | Rare | $4.99 | — |
| Dragon's Maze Promos | 96★ | Rare | — | $6.99 |
5 rulings from Wizards of the Coast
- 15 April 2013You must be able to target a spell to cast Render Silent.
- 15 April 2013The affected player can still activate abilities, including abilities of cards in their hand (such as bloodrush abilities), and the player can still play lands.
- 15 April 2013If the spell is an illegal target when Render Silent tries to resolve (because it’s been countered by another spell, for example), Render Silent won’t resolve and none of its effects will happen.
- 15 April 2013Render Silent doesn’t stop any player from casting spells in response to Render Silent before it resolves.
- 15 April 2013A spell that “can’t be countered” is a legal target for Render Silent. The spell won’t be countered when Render Silent resolves, but that spell’s controller won’t be able to cast spells for the rest of the turn.