Fervor [Seventh Edition] Goblin Artificer If those permanents are exchanged

If those permanents are exchanged this way

Set: Beatdown Box Set Type: Creature — Wurm Rarity: Common Cost: {4}{G}{G} Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking

"Purity of magic can only come from purity of the land

Set: Planechase Planes Type: Plane — Ulgrotha Rarity: Common Whenever a nonblack card is put into a player's graveyard from anywhere

Fervor [Seventh Edition] Goblin Artificer If those permanents are exchangedSet: Seventh Edition Type: Enchantment Rarity: Rare Cost: {2}{R} Creatures you control have haste. (They can attack and {T} as soon as they come under your control.) The intensity of their glare was soon surpassed by the intensity of their attack.