FOILCheapest priced copy (Tenth Edition): $0.35 at Card Kingdom, near mint, their price list as of .
Mantis Engine 
Artifact Creature — Insect · 3/3 · Uncommon · Tenth Edition · #333★
{2}: This creature gains flying until end of turn. (It can't be blocked except by creatures with flying or reach.)
{2}: This creature gains first strike until end of turn. (It deals combat damage before creatures without first strike.)
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
3 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tenth Edition | 333 | Uncommon | $0.35 | — |
| Tenth Edition | 333★ | Uncommon | — | $0.49 |
| Urza's Destiny | 133 | Uncommon | $0.39 | $1.49 |