For the Ancestors [Commander Masters] Land // Artifact Creature you may tap or untap

you may tap or untap target creature

Set: Time Spiral Type: Creature — Sliver Rarity: Common Cost: {1}{R} All Sliver creatures have menace

As Steam Vents enters the battlefield

Set: Archenemy Type: Artifact Rarity: Uncommon Cost: {4} At the beginning of each opponent's upkeep

She shepherds mysteries and dust as others would a flock of sheep

For the Ancestors [Commander Masters] Land // Artifact Creature you may tap or untapSet: Commander Masters Type: instant Rarity: Rare Cost: {2}{G} Choose a creature type. Look at the top six cards of your library. You may reveal any number of cards of the chosen type from among them and put the revealed cards into your hand. Put the rest on the bottom of your library in a random order. Flashback 3G (You may cast this card from your graveyard for its flashback cost. Then exile it.)