Mightstone [Antiquities] Basic Psychic Energy the player can activate mana

the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card

Set: Zendikar Type: Legendary Creature — Angel Rarity: Mythic Cost: {6}{W}{W}{W} Flying

hold the li—" —General Srok

Set: Platinum: Supreme Victors Type: Darkness Rarity: Holo Rare Retreat cost: Colorless

Set: Planechase Anthology Planes Type: Plane — Bolas’s Meditation Realm Rarity: Common At the beginning of your end step

Mightstone [Antiquities] Basic Psychic Energy the player can activate manaSet: 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.