The 2017 Magic: The Gathering Unstable card, Border Guardian #140. This uncommon artifact creature introduces playful silver-bordered mechanics to your collection.
2017 • Magic: The Gathering • Unstable
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| Condition | Value | Source | Trend | Price Details |
|---|---|---|---|---|
$0.10 | Guide Estimate | 0% | ||
Raw / Ungraded
TCGplayer Market (reference) · Guide Estimate evidence · captured Oct 11, 2026
Released in 2017 as part of the Magic: The Gathering Unstable expansion, Border Guardian is card number 140 in the set. Designed by Chris Seaman, this uncommon artifact creature—Knight bridges the gap between traditional gameplay and the set's signature humor through its silver-bordered treatment. Unlike standard black-bordered cards, silver-bordered cards operate under unique rules that prioritize fun and creativity over competitive balance. The card’s abilities are triggered by the border color of spells you cast. When you cast a silver-bordered spell, Border Guardian receives a +1/+1 counter, allowing it to grow in strength alongside your unconventional plays. If you cast a black-bordered spell, the creature cannot be blocked for that turn, offering a burst of offensive momentum. Finally, casting a white-bordered spell grants it double strike until the end of the turn, enabling it to deal damage in both the combat damage steps. Border Guardian stands out for its interactive nature, rewarding players who build decks with a mix of border types. Its versatility makes it a favorite among casual players and collectors who enjoy the distinct aesthetic and rules of silver-bordered cards. Whether you are building a whimsical deck or completing a set, this card adds a unique layer of strategy to your Magic: The Gathering experience.
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The catalog profile below summarizes the card identity, featured subject, and notable collectible traits.
The core identity of the card within the set.
The subject, team, league, and sport context tied to this card.
Featured
Border Guardian
Game
Magic: The Gathering
Rarity, print treatment, and game-specific stats for this card.
Uncommon
Chris Seaman
Card Stock
English
{4}
Artifact Creature — Knight
1 / 1
Abilities, attacks, oracle text, and flavor text printed on the card.
Whenever you cast a silver-bordered spell, put a +1/+1 counter on this creature. Whenever you cast a black-bordered spell, this creature can't be blocked this turn. Whenever you cast a white-bordered spell, this creature gains double strike until end of turn.
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