![Arcane Signet [March of the Machine Commander] Elemental Spirit Set: Mystery Booster Playtest Cards](https://cdn.shopify.com/s/files/1/0583/0695/3397/files/b1d5890b-4f74-5cfa-8526-03f4193cf712.png?v=1735130371)
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Set: Mystery Booster Playtest Cards Type: Enchantment — Aura Rarity: Rare Cost: {U} Flash
target attacking creature gets +1/+1 for each other attacking creature and gains double strike
Sliver spells YOU CAST have CASCADE
Set: Urza's Saga Type: Instant Rarity: Uncommon Cost: {1}{W} Destroy target enchantment
growing until they're large enough to burst free and seek out larger prey
Arcane Signet [March of the Machine Commander] Elemental Spirit Set: Mystery Booster Playtest CardsSet: March of the Machine Commander Type: Artifact Rarity: Common Cost: {2} {T}: Add one mana of any color in your commander's color identity. It started as a mere drop of water. The Magic Mirror crystallized it into much more.
