Cheapest priced copy (Teenage Mutant Ninja Turtles Eternal): $0.35 at Card Kingdom, near mint, their price list as of .
Containment Protocol 
Enchantment — Aura · Common · Teenage Mutant Ninja Turtles Eternal · #108
Enchant creature
When this Aura enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
Legal inCommanderLegacyVintagePauper
Not legal inBrawlStandardPioneerModern
1 printing · $0.35 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Teenage Mutant Ninja Turtles Eternal | 108 | Common | $0.35 | — |