Xanathar, Guild Kingpin [Dungeons & Dragons: Adventures in the Forgotten Realms Prerelease Promos] Mirrodin Besieged Promos The Astra Militarum is a

The Astra Militarum is a vast fighting formation and for its operations to go smoothly a substantial command structure is needed

{T}: Put a +1/+1 counter on each green creature that entered the battlefield this turn

grenade sets and purity seals included

return each other card exiled with Mimic Vat to its owner's graveyard

Xanathar, Guild Kingpin [Dungeons & Dragons: Adventures in the Forgotten Realms Prerelease Promos] Mirrodin Besieged Promos The Astra Militarum is aSet: Dungeons & Dragons: Adventures in the Forgotten Realms Prerelease Promos Type: Legendary Creature Beholder Rarity: Mythic Cost: {4}{U}{B} At the beginning of your upkeep, choose target opponent. Until end of turn, that player can't cast spells, you may look at the top card of their library any time, you may play the top card of their library, and you may spend mana as though it were mana of any color to cast spells this way.