Cheapest priced copy (Crimson Vow Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Midnight Arsonist 
Creature — Vampire · 3/2 · Rare · Crimson Vow Commander · #65
When this creature enters, destroy up to X target artifacts without mana abilities, where X is the number of Vampires you control.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 to $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Crimson Vow Commander | 27 | Rare | $0.49 | — |
| Crimson Vow Commander | 65 | Rare | $0.59 | — |
One ruling from Wizards of the Coast
- 19 November 2021Midnight Arsonist's triggered ability can't target artifacts that have either activated or triggered mana abilities. An activated mana ability is one that could add mana as it resolves, doesn't have a target, and isn't a loyalty ability. A triggered mana ability is one that could add mana as it resolves and triggers based on an activated mana ability.