Cheapest priced copy (Warhammer 40,000 Commander): $0.59 at Card Kingdom, near mint, their price list as of .
Screamer-Killer 
Creature — Tyranid · 5/5 · Rare · Warhammer 40,000 Commander · #84
Trample
Bio-Plasmic Scream — Whenever you cast a creature spell with mana value 5 or greater, this creature deals 5 damage to any target.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.59 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Warhammer 40,000 Commander | 84 | Rare | $0.59 | — |
| Warhammer 40,000 Commander | 84★ | Rare | — | — |