Cheapest priced copy (Outlaws of Thunder Junction): $2.99 at Card Kingdom, near mint, their price list as of .
Rakdos, the Muscle 
Legendary Creature — Demon Mercenary · 6/5 · Mythic · Outlaws of Thunder Junction · #297
Flying, trample
Whenever you sacrifice another creature, exile cards equal to its mana value from the top of target player's library. Until your next end step, you may play those cards, and mana of any type can be spent to cast those spells.
Sacrifice another creature: Rakdos gains indestructible until end of turn. Tap it. Activate only once each turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $2.99 to $14.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 226 | Mythic | $2.99 | $3.49 |
| Outlaws of Thunder Junction | 297 | Mythic | $5.99 | $14.99 |
| Outlaws of Thunder Junction Promos | 226p | Mythic | $4.99 | $9.99 |
| Outlaws of Thunder Junction Promos | 226s | Mythic | — | $8.49Out of stock |
3 rulings from Wizards of the Coast
- 12 April 2024Use the mana value of the sacrificed creature as it last existed on the battlefield to determine how many cards to exile.
- 12 April 2024If the sacrificed creature had {X} in its mana cost, X is 0 for the purpose of determining its mana value.
- 12 April 2024You pay all costs and follow all normal timing rules for cards played from exile with Rakdos's triggered ability. For example, if the exiled card is a land card, you may play it only during your main phase while the stack is empty.