Cheapest priced copy (Portal): $5.99 at Card Kingdom, near mint, their price list as of .
Mercenary Knight 
Creature — Human Mercenary Knight · 4/4 · Rare · Portal · #99
When this creature enters, sacrifice it unless you discard a creature card.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Portal | 99 | Rare | $5.99 | — |