Cheapest priced copy (Eldritch Moon): $0.49 at Card Kingdom, near mint, their price list as of .
Impetuous Devils 
Creature — Devil · 6/1 · Rare · Eldritch Moon · #132
Trample, haste
When this creature attacks, up to one target creature defending player controls blocks it this combat if able.
At the beginning of the end step, sacrifice this creature.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.49 to $1.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Eldritch Moon | 132 | Rare | $0.49 | $0.99 |
| Eldritch Moon Promos | 132s | Rare | — | $1.79 |
One ruling from Wizards of the Coast
- 13 July 2016If a creature affected by the first triggered ability of Impetuous Devils is tapped or is affected by a spell or ability that says it can’t block, then it doesn’t block. If there’s a cost associated with having that creature block, its controller isn’t forced to pay that cost, so it doesn’t have to block in that case either.