River Serpent [Mystery Booster]Set: Mystery Booster Type: Creature Serpent Rarity: Common Cost: {5}{U} River Serpent can't attack unless there are five or more cards in your graveyard. Cycling {U} ({U}, Discard this card: Draw a card.) Though the Luxa River brings life to Naktamun, it's not without dangers.

Put all artifact cards from among them onto the battlefield

so the potency of their spells is never predictable

Set: Collectors’ Edition Type: Artifact Rarity: Rare Cost: {0} {T}: Add {B}

Set: Conspiracy: Take the Crown Type: Artifact Rarity: Rare Cost: {3} Whenever a player plays a land

intent only on his own perfection

You can't choose the same card twice

Set: Limited Edition Alpha Type: Sorcery Rarity: Common Cost: {B} Return target creature card from your graveyard to your hand

leaving in exile all non-Aura permanent cards exiled with Karn Liberated

Set: Amonkhet Invocations Type: Instant Rarity: Mythic Cost: {1}{U} You may return an Island you control to its owner's hand rather than pay this spell's mana cost

if any of those cards remain exiled

return it to its owner's hand instead

Set: Mirrodin Type: Artifact Creature — Wizard Rarity: Common Cost: {3} Flying