Silver oval holofoil stamps were introduced in the Magic 2015 set. This was done to make those cards feel more special, as well as to guarantee authenticity. As such, it makes counterfeiting more difficult. Normal commons, uncommon cards, and basic lands do not feature this security stamp, except for basic lands from Unstable.
Cards from the Amonkhet Invocations set have a gold holofoil stamp.
Cards from the Signature Spellbook sets have circle-shaped holofoil stamps.
Cards from the Ponies: The Galloping set have a heart-shaped holofoil stamp.
- Aaron Forsythe (January 06, 2014). "From the Director's Chair: 2013". magicthegathering.com. Wizards of the Coast.
- Wizards of the Coast (September 28, 2020). "The Walking Dead Shambles into Secret Lair". magicthegathering.com. Wizards of the Coast.
- Mark Rosewater (November 29, 2021). "To Unfinity and Beyond". magicthegathering.com. Wizards of the Coast.