Following the magic item creation guidelines, this would cost 8 (Spell level) x 15 (Caster level) * 1800 (Command word multiplier) * 1/5 (Once per day) = 43200 GP. The price is so low that I’d not allow the item myself, but you can use this as a starting point for your haggling with the DM.
Do you need clearance to sell a surgical mask?
Manufacturers of surgical masks, on the other hand, must demonstrate that their product is at least as good as a mask already on the market to obtain “clearance” for marketing.
How much does custom item of mind cost?
Command-activated custom item of Mind Blank (DMG). 43200GP, head or shoulders slot? Following the magic item creation guidelines, this would cost 8 (Spell level) x 15 (Caster level) * 1800 (Command word multiplier) * 1/5 (Once per day) = 43200 GP.
Magic items are not purchasable without your DM’s permission. If your DM allows it, the DMG (p.135) recommends about 500 gp for a uncommon item (example: +1 weapon) and 5,000 gp for a rare item (example: +2 weapon).
How to find the price of a magical item?
The DMG on pg 135 lists the cost range of magical items by rarity. If you are the DM, feel free to pick a price within that range if you think that item should be more expensive, or just roll to determine a price.
How much does a magic weapon cost in 5e?
If you are in Adventurers’ League, you will likely be able to soon buy a +1 weapon from your faction for 500 gp (check with your AL DM for further information). Typically you cannot buy magic items in 5e (with the exception of healing potions) and magic weapons are exceedingly rare.
Is there a magical item economy in DND 5e?
The DMG also says that there is no magical item economy. This does not mean that you cannot purchase magical items in the standard 5e setting, or that there are not magical item shops that sell things. It just means there is not a catalog that you can go to, request a specific item, and then have it show up in shop a week later.
