Border Guardian⁣ - Unstable⁣ (Uncommon)⁣ [140]

Border Guardian is a 1/1 Artifact Creature that gains +1/+1 counters when you cast silver-bordered spells, making it stronger as you play more of them. It also becomes unblockable after casting black-bordered spells and can gain double strike with white-bordered spells, allowing for versatile attack strategies. Best suited for decks that can incorporate a mix of silver, black, and white-bordered spells, this Knight thrives on a varied casting strategy but requires careful planning to maximise its abilities.