The deck lists for Mirrodin Besieged's Event Decks leaked a few weeks ago, but on Wednesday, Wizards revealed them in their Arcana section.

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"Into the Breach"

• Creatures (26)
• 2 Goblin Bushwhacker
• 2 Goblin Guide
• 4 Goblin Wardriver
• 1 Iron Myr
• 4 Kuldotha Rebirth
• 4 Memnite
• 4 Ornithopter
• 4 Signal Pest
• 1 Spikeshot Elder

• Spells (12)
• 2 Darksteel Axe
• 2 Devastating Summons
• 2 Galvanic Blast
• 4 Lightning Bolt
• 2 Panic Spellbomb

• Lands (22)
• 1 Contested War Zone
• 21 Mountain

• Sideboard (15)
• 2 Act of Treason
• 4 Goblin Ruinblaster
• 2 Into the Core
• 1 Leyline of Punishment
• 4 Searing Blaze
• 2 Unstable Footing

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"Infect and Defile"

• Creatures (15)
• 4 Corpse Cur
• 1 Hand of the Praetors
• 4 Necropede
• 2 Phyrexian Vatmother
• 4 Plague Myr

• Spells (22)
• 2 Consuming Vapors
• 2 Contagion Clasp
• 4 Corrupted Conscience
• 2 Deprive
• 1 Doom Blade
• 4 Foresee
• 2 Mana Leak
• 3 Preordain
• 2 Smother

• Lands (23)
• 2 Drowned Catacomb
• 10 Island
• 4 Jwar Isle Refuge
• 7 Swamp

• Sideboard (15)
• 3 Deathmark
• 1 Doom Blade
• 3 Flashfreeze
• 2 Go for the Throat
• 4 Negate
• 2 Smother

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