Mightstone [Antiquities] Stronghold Set: Battlebond Prerelease Promos Type:

Set: Battlebond Prerelease Promos Type: Legendary Creature — Human Rarity: Rare Cost: {2}{G} Partner with Toothy

And as he sat

Set: Tenth Edition Type: Enchantment Rarity: Rare Cost: {B}{B}{B} Whenever an opponent draws a card

Put that card into your hand and exile the other with a silver counter on it

then sacrifices a third of the lands they control

Mightstone [Antiquities] Stronghold Set: Battlebond Prerelease Promos Type:Set: Antiquities Type: Artifact Rarity: Uncommon Cost: {4} Attacking creatures get +1 +0. While exploring the sacred cave of Koilos with his brother Mishra and their master Tocasia, Urza fell behind in the Hall of Tagsin, where he discovered the remarkable Mightstone.