Cheapest priced copy (The Lost Caverns of Ixalan): $0.49 at Card Kingdom, near mint, their price list as of .
Dire Flail // Dire Blunderbuss 
Artifact — Equipment // Artifact — Equipment · Rare · The Lost Caverns of Ixalan · #145
Equipped creature gets +2/+0.
Equip {1}
Craft with artifact {3}{R}{R} ({3}{R}{R}, Exile this artifact, Exile another artifact you control or an artifact card from your graveyard: Return this card transformed under its owner's control. Craft only as a sorcery.)
Equipped creature gets +3/+0 and has "Whenever this creature attacks, you may sacrifice an artifact other than Dire Blunderbuss. When you do, this creature deals damage equal to its power to target creature."
Equip {1}
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
2 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan | 145 | Rare | $0.49 | $0.49 |
| The Lost Caverns of Ixalan | 374 | Rare | $0.49 | $0.79 |
7 rulings from Wizards of the Coast
- 10 November 2023Use the equipped creature's power as the reflexive triggered ability granted by Dire Blunderbuss resolves to determine how much damage is dealt. If the equipped creature is no longer on the battlefield at that time, use its power as it last existed on the battlefield.
- 10 November 2023If the materials required include multiple objects, you may exile some of them from among permanents you control and the rest from among cards in your graveyard. You don't have to choose all permanents or all cards from your graveyard.
- 10 November 2023You don't choose a target for the triggered ability granted by Dire Blunderbuss at the time it triggers. Rather, a second "reflexive" ability triggers when you sacrifice another artifact this way. You choose targets for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.
- 10 November 2023You may exile tokens you control as part of the materials required. However, because they aren't cards and won't stay in exile, any abilities that refer to what you "used to craft" the back faces won't refer to anything.
- 10 November 2023The back faces of some cards with craft refer to cards "used to craft" it. This refers to the cards exiled as part of the cost of the craft ability of the front face. Those cards are considered to be "used to craft" that permanent as long as they remain exiled and the permanent remains on the battlefield, even if the permanent's controller changes or some of its characteristics change (because of a copy effect, for example.)
- 10 November 2023If a card that isn't a transforming double-faced card becomes a copy of a card with craft, it'll stay in exile if you activate the craft ability. It won't return to the battlefield.
- 10 November 2023If the equipped creature isn't on the battlefield as the reflexive triggered ability granted by Dire Blunderbuss resolves but it had lifelink when it left the battlefield, you will gain life.