Cheapest priced copy (March of the Machine): $0.49 at Card Kingdom, near mint, their price list as of .
Glissa, Herald of Predation 
Legendary Creature — Phyrexian Zombie Elf · 3/5 · Rare · March of the Machine · #226
At the beginning of combat on your turn, choose one —
• Incubate 2 twice. (To incubate 2, create an Incubator token with two +1/+1 counters on it and "{2}: Transform this token." It transforms into a 0/0 Phyrexian artifact creature.)
• Transform all Incubator tokens you control.
• Phyrexians you control gain first strike and deathtouch until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine | 226 | Rare | $0.49 | $0.49 |
| March of the Machine | 308 | Rare | $0.49 | $0.99 |
| March of the Machine Promos | 226p | Rare | $0.49 | $0.49 |
| March of the Machine Promos | 226s | Rare | — | $0.79 |