Field Marshal (Borderless) [Secret Lair Drop Series] Alien Crab Horror it can't block creatures that

it can't block creatures that didn't attack it

Set: Khans of Tarkir Type: Land Rarity: Uncommon Sandsteppe Citadel enters the battlefield tapped

Set: Modern Event Deck 2014 Type: Artifact Rarity: Uncommon Cost: {2} At the beginning of your upkeep or whenever you cast a white spell

Set: Champions of Kamigawa Type: Legendary Creature — Spirit Rarity: Rare Cost: {2}{G}{G} Whenever you cast a Spirit or Arcane spell

Whenever Siege Dragon attacks

Field Marshal (Borderless) [Secret Lair Drop Series] Alien Crab Horror it can't block creatures thatSet: Secret Lair Drop Series Type: Creature Human Soldier Rarity: Rare Cost: {1}{W}{W} Other Soldier creatures get +1 +1 and have first strike. (They deal combat damage before creatures without first strike.)