Cheapest priced copy (Final Fantasy Commander): $0.99 at Card Kingdom, near mint, their price list as of .
Protection Magic 
Instant · Rare · Final Fantasy Commander · #24
Put a shield counter on each of up to three target creatures. (If a creature with a shield counter would be dealt damage or destroyed, remove a shield counter from it instead.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.99 to $3.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Final Fantasy Commander | 24 | Rare | $0.99 | $0.99 |
| Final Fantasy Commander | 107 | Rare | $1.79 | $3.49 |
6 rulings from Wizards of the Coast
- 6 June 2025"Shield" is not an ability that creatures have and shield counters are not keyword counters. If a creature with a shield counter loses its abilities, the shield counter will still protect it as normal.
- 6 June 2025Removing a shield counter when a permanent would be dealt damage or destroyed isn't the same as regenerating that permanent.
- 6 June 2025If a permanent with a shield counter is dealt unpreventable damage, that damage will be dealt and a shield counter will still be removed.
- 6 June 2025Shield counters don't prevent players from sacrificing creatures.
- 6 June 2025A creature with a shield counter on it may still be destroyed by state-based actions if it has damage marked on it equal to its toughness or has been dealt unpreventable damage by a source with deathtouch.
- 6 June 2025If a permanent that would be dealt damage has more than one shield counter on it, that damage is prevented and only one shield counter is removed.