Diabolic Intent [Planeshift] Portal Second Age Set: New Phyrexia Type: Legendary

Set: New Phyrexia Type: Legendary Creature — Praetor Rarity: Mythic Cost: {5}{B}{B} Swampwalk (This creature can't be blocked as long as defending player controls a Swamp

Note the type of mana spent to pay this activation cost

Whereas Mishra works in metals and stone

copy that ability

it's an artifact creature with power and toughness each equal to its converted mana cost

Diabolic Intent [Planeshift] Portal Second Age Set: New Phyrexia Type: LegendarySet: Planeshift Type: Sorcery Rarity: Rare Cost: {1}{B} As an additional cost to cast this spell, sacrifice a creature. Search your library for a card and put that card into your hand. Then shuffle your library.