I mentioned in my other thread that I wanted to create a cycle of lands that is representative of the zones from the World of Warcraft. After some consideration, here is what I came up with so far and wanted to see what others thought. Eventually, I'll have at least 10 lands, with each color combination represented.
Borean Tundra
Land

: Add

to your mana pool.

,

, Sacrifice Borean Tundra: Search your library for a Plains and put it into play tapped.

,

, Sacrifice Borean Tundra: Search your library for an Island and put it into play tapped.


,

, Remove Borean Tundra from the game: Gain 3 life and draw a card.
Burning Steppes
Land

: Add

to your mana pool.

,

, Sacrifice Burning Steppes: Search your library for a Mountain and put it into play tapped.

,

, Sacrifice Burning Steppes: Search your library for a Swamp and put it into play tapped.

,

, Remove Burning Steppes from the game: Destroy target non-black creature.
Nagrand
Land

: Add

to your mana pool.

,

, Sacrifice Nagrand: Search your library for a Plains and put it into play tapped.

,

, Sacrifice Nagrand: Search your library for a Forest and put it into play tapped.

,

, Remove Nagrand from the game: Search your library for a Forest and Plains and put them into play tapped.
Icecrown
Land

: Add

to your mana pool.

,

, Sacrifice Icecrown: Search your library for an Island and put it into play tapped.

,

, Sacrifice Icecrown: Search your library for a Swamp and put it into play tapped.

,

, Remove Icecrown from the game: Draw 2 cards and lose 4 life. Play this ability as a sorcery.
Un'Goro Crater
Land

: Add

to your mana pool.

,

, Sacrifice Un'Goro Crater: Search your library for a Forest and put it into play tapped.

,

, Sacrifice Un'Goro Crater: Search your library for a Swamp and put it into play tapped.

,

, Remove Un'Goro Crater from the game: Sacrifice a creature and return target creature from your graveyard to play.
Ghostlands
Land

: Add

to your mana pool.

,

, Sacrifice Ghostlands: Search your library for a Plains and put it into play tapped.

,

, Sacrifice Ghostlands: Search your library for a Swamp and put it into play tapped.

,

, Remove Ghostlands from the game: Remove target permanent from the game and gain life equal to its converted mana cost.
Originally, I had each land fetching the other color as the first two abilities are now, but then I realized that they would be inferior to the Panorama cycle that was just printed (which I really like). Therefore, I figured it made sense to include a third ability, and I started by giving each land the ability to fetch two lands like the Nagrand ability. Upon further pondering, I decided that would be quite boring, and wanted to give each color combination a sense of their unique flavor and came up with what was posted above. Some of the abilities probably need work, and I'm curious as to what other people think.