Mudslide

Creatures without flying don't untap during their controllers' untap steps.
At the beginning of each player's upkeep, that player may choose any number of tapped creatures without flying they control and pay {2} for each creature chosen this way. If the player does, untap those creatures.

Price of Glory

Whenever a player taps a land for mana, if it's not that player's turn, destroy that land.

Blood Moon

Blood Sun

When this enchantment enters, draw a card.
All lands lose all abilities except mana abilities.

Stranglehold

Your opponents can't search libraries.
If an opponent would begin an extra turn, that player skips that turn instead.