FOILCheapest priced copy (Oath of the Gatewatch): $0.49 at Card Kingdom, near mint, their price list as of .
Bearer of Silence 
Creature — Eldrazi · 2/1 · Rare · Oath of the Gatewatch Promos · #67s
Devoid (This card has no color.)
When you cast this spell, you may pay {1}{C}. If you do, target opponent sacrifices a creature. ({C} represents colorless mana.)
Flying
This creature can't block.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Oath of the Gatewatch | 67 | Rare | $0.49 | $0.49 |
| Oath of the Gatewatch Promos | 67s | Rare | — | $0.59 |
2 rulings from Wizards of the Coast
- 22 January 2016Players can respond to the triggered ability, but once it starts resolving and you decide whether to pay {1}{C}, it's too late for anyone to respond.
- 22 January 2016Bearer of Silence's triggered ability targets only the player, not any creature. For example, the player may sacrifice a creature with hexproof.