Cheapest priced copy (Foundations Jumpstart): $3.49 at Card Kingdom, near mint, their price list as of .
Fiendish Duo 
Creature — Devil · 5/5 · Mythic · Foundations Jumpstart · #545
First strike (This creature deals combat damage before creatures without first strike.)
If a source would deal damage to an opponent, it deals double that damage to that player instead.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $3.49 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Game Night 2019 | 4 | Mythic | — | $4.99 |
| Foundations Jumpstart | 545 | Mythic | $3.49 | — |
| Murders at Karlov Manor Commander | 153 | Mythic | $3.49 | — |
| Kaldheim Promos | 1 | Mythic | — | — |