ETCHEDCheapest priced copy (Commander 2020): $6.49 at Card Kingdom, near mint, their price list as of .
Obscuring Haze 
Instant · Rare · Commander Masters · #566
If you control a commander, you may cast this spell without paying its mana cost.
Prevent all damage that would be dealt this turn by creatures your opponents control.
Legal inCommanderLegacyVintage
Banned inBrawl
Not legal inStandardPioneerModernPauper
5 printings · $6.49 to $18.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2020 | 61 | Rare | $6.49 | — |
| Commander Masters | 308 | Rare | $6.49 | $8.99 |
| Commander Masters | 566 | Rare | — | — |
| Commander Masters | 701 | Rare | $10.99 | $13.99 |
| Avatar: The Last Airbender Eternal | 313 | Rare | $18.99 | — |
2 rulings from Wizards of the Coast
- 17 April 2020It doesn't matter whose commander you control. Any one will do. If you have two commanders, you just need to control one of them.
- 17 April 2020Once you begin casting this spell, players can't take any other actions until you're done casting it. Notably, they can't try to remove the commander you control to make you pay its cost.