MTG Salvation

I have been looking at a few different cards that ask for you to sacrifice lands as part of their affects and am trying to decide if there is any real, worthwhile application for them. The two that stick out are Squandered Resources and Overlaid Terrain. I know the Knight of the Reliquary is great because it essentially cycles your lands but are there any practical applications for other cards, such as the two I mentioned?

Rushing River is another, they play good with KotR and Terravore. Also they give you threshold quick and let you reuse CIP abilities like Bojuka Bog in combo with Life from the Loam or Crucible of Worlds.

Aura Fracture is a fun one. Land sac fuels Worm Harvest in a big way, and Planar Birth can do some beautiful things - even more fun if you can drop Land Tax early to fuel it. There are also land-count-matters cards like Restore Balance (which is still pretty bad) and Natural Balance.

Sylvan Safekeeper can be pretty strong, as are these, found from a search:
Aura Fracture
Dreamscape Artist
Dust Bowl
Greater Gargadon
Sunstone (pretty sweet snow-covered tech similar to Constant Mists)

Of course it's good to include things like Life from the Loam and Crucible of Worlds too if you have them.

Dust Bowl all the way. It's been pivotal for me several times (just today Dust Bowl was responsible for keeping the RUG deck in check by getting rid of Wolf Run, and keeping the mono-B deck in check by getting rid of Coffers). Dust Bowl+Dakmor Salvage or Crucible of Worlds can prove to be very mean.

And, while technically not sacrifice, Seismic Assault can be quite amusing. Assault+Crucible seems like a fun setup for a free Shock each turn. I've got a Planeswalker-format deck on MTGO with 3x Assault, 4x Treasure Hunt, and 53x lands, which can often murderdeathmurderkillmurder on turn 4, just by chucking my deck at my opponent's head.

Quote from Pyramus

While not a constant outlet in the more conventional sense, I always love Constant Mists in cases like this.

I was about to suggest this.

Anyway for untapped Forest, the funniest would be Wood Elemental.

Ib Halfheart, Goblin Tactician is a baller.

There's the old standby, Zuran Orb.

Also, Claws of Gix and Edge of Autumn.

You'll have to be creative to make use of these, however.

Claws of Gix is awesome. Assuming you've got the mana, you can counter just about any spell targeting your field. And gain a few life in the process. Using it on lands seems uncommon (or desperate), though.

there are a few decent retrace spells:
Spitting Image
Waves of Aggression
Worm Harvest

also agree with above posters on Constant Mists and Scapeshift.

Dark Heart of the Wood

And, though not a land sacrificer per se, Life and Limb allows some interesting strategies.

I found another interesting card with a land sac component, Excavation. There are a lot of cards mentioned in this thread I had just never considered before, i am getting an urge to create a janky deck based around personal land sac. Why? Because it's a bit of an absurd idea to build a full deck around and would be good for a few laughs.

Quote from Gallus

Dark Heart of the Wood

And, though not a land sacrificer per se, Life and Limb allows some interesting strategies.

Overgrown Estate says hi!

Riftstone Portal and Flagstones of Trokair love being sacrificed. There's also Dakmor Salvage which doesn't mind so much, since you can easily recur it for continuous sacrificing pleasure. Then there's the God's Eye, which leaves a lot to be desired in edh.

Putting lands in your yard can help you abuse stuff like Land Tax, Oath of Lieges, Life From the Loam, Restore Balance, Martyr's Bond, and Worm Harvest.

Crucible of Worlds can help offset the lands your sacrificing since you can play them right out of the yard. And with guys like Terravore and Knight of the Reliquary can net a big benefit off you sacrificing lands.

I think most the others hit all the great land sacs. My personal favorite is Dust Bowl.

For those who like dust bowl, there is also Army Ants.