Winter Orb

As long as Winter Orb is untapped, players can't untap more than one land during their untap steps.

Bronze Horse

Trample
As long as you control another creature, prevent all damage that would be dealt to Bronze Horse by spells that target it.

Feldon's Cane

{T}, Exile this artifact: Shuffle your graveyard into your library.

Jinx

Target land becomes the basic land type of your choice until end of turn.
Draw a card at the beginning of the next turn's upkeep.

Ebony Rhino

Ankh of Mishra

Whenever a land enters, Ankh of Mishra deals 2 damage to that land's controller.

Sleight of Mind

Change the text of target spell or permanent by replacing all instances of one color word with another. (For example, you may change "target black spell" to "target blue spell." This effect lasts indefinitely.)

Steal Artifact

Enchant artifact
You control enchanted artifact.

Kormus Bell

All Swamps are 1/1 black creatures that are still lands.