Jace, Unraveler of Secrets [Shadows over Innistrad Prerelease Promos] Planechase If those permanents are exchanged

If those permanents are exchanged this way

D'Haren stared at the twisted lump of metal that had been a prized artifact

Set: Beta Edition Type: Enchantment Rarity: Uncommon Cost: {G}{G} {G}{G}: Counter target black spell

Each other player loses X life

Set: Urza's Destiny Type: Enchantment Rarity: Rare Cost: {2}{W}{W} Each other non-Aura enchantment is a creature in addition to its other types and has base power and base toughness each equal to its mana value

Jace, Unraveler of Secrets [Shadows over Innistrad Prerelease Promos] Planechase If those permanents are exchangedSet: Shadows over Innistrad Prerelease Promos Type: Legendary Planeswalker Jace Rarity: Mythic Cost: {3}{U}{U} +1: Scry 1, then draw a card. 2: Return target creature to its owner's hand. 8: You get an emblem with "Whenever an opponent casts their first spell each turn, counter that spell."