Thought-Knot Seer [The List] Collectors' Edition Set: Conspiracy Type: Instant Rarity:

Set: Conspiracy Type: Instant Rarity: Rare Cost: {3}{U}{U} You may exile a blue card from your hand rather than pay this spell's mana cost

which fueled the war with heavily armored mechs

Ulvenwald Hydra's power and toughness are each equal to the number of lands you control

4x - Plaster Walls

Thought-Knot Seer [The List] Collectors' Edition Set: Conspiracy Type: Instant Rarity:Set: The List Type: Creature Eldrazi Rarity: Rare Cost: {3}{C} ({C} represents colorless mana.) When Thought Knot Seer enters the battlefield, target opponent reveals their hand. You choose a nonland card from it and exile that card. When Thought Knot Seer leaves the battlefield, target opponent draws a card.