Horn of Deafening
Artifact
, 
: Prevent all combat damage that would be dealt by target creature this turn.
- CMC
- 4
- Mana cost
- Color identity
- C
- Rarity
- uncommon
- Set
- Masters Edition IV
- Price
- —
- EDHREC rank
- #25836
Horn of Deafening makes every creature on the board unable to block, turning any sufficiently wide attack into a guaranteed alpha strike. Four mana to cast and two to activate is a real ask, but the effect is universal and instant-speed — opponents can't race it by chump-blocking their way to safety.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Horn of Deafening is a Commander card, full stop. In that format, the four-mana artifact slot is competitive, but the ability to blank all blockers across all opponents at instant speed has genuine closing power in combat-focused strategies. Legacy and Vintage are theoretically legal homes, but those formats move too fast for a six-mana activation on a four-mana artifact to matter — it will never see play there. Oathbreaker shares Commander's multiplayer structure, so the same combat-focused niche applies at a smaller table, though the tighter card restrictions make the slot harder to justify.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Pricing data for Horn of Deafening isn't currently available, so check Scryfall or TCGPlayer for the current market rate before buying. It's a niche combat-enabler with a narrow audience, which historically keeps prices low — but verify before assuming it's a bulk pickup.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.