Farseek

Search your library for a Plains, Island, Swamp, or Mountain card, put it onto the battlefield tapped, then shuffle.

Necrogen Mists

At the beginning of each player's upkeep, that player discards a card.

Whenever an opponent discards a card, that player loses 2 life.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

{1}{R}, {T}, Sacrifice Magus of the Wheel: Each player discards their hand, then draws seven cards.

{T}: Add one mana of any color that a land an opponent controls could produce.