Thought-Knot Seer [Oath of the Gatewatch Promos] Urza's Saga This is but a taste

This is but a taste of the destruction my pets have in store

Set: Portal Type: Creature — Dragon Rare Cost: {5}{B}{B} Flying When Ebon Dragon enters the battlefield

{T}: Take an extra turn after this one

) Smoldering Marsh enters the battlefield tapped unless you control two or more basic lands

Set: Onslaught Type: Sorcery Rare Cost: {6}{G}{G} Each player's life total becomes the number of creatures they control

Thought-Knot Seer [Oath of the Gatewatch Promos] Urza's Saga This is but a tasteSet: Oath of the Gatewatch Promos Type: Creature Eldrazi 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.