Troubled Healer

Sacrifice a land: Prevent the next 2 damage that would be dealt to any target this turn.

Stormwatch Eagle

Flying
Sacrifice a land: Return this creature to its owner's hand.

Kykar, Wind's Fury

Flying
Whenever you cast a noncreature spell, create a 1/1 white Spirit creature token with flying.
Sacrifice a Spirit: Add {R}.

Akki Avalanchers

Sacrifice a land: This creature gets +2/+0 until end of turn. Activate only once each turn.

Overgrown Estate

Squandered Resources

Sacrifice a land: Add one mana of any type the sacrificed land could produce.

Trenching Steed

Sacrifice a land: This creature gets +0/+3 until end of turn.

Zuran Orb

Need for Speed

Sacrifice a land: Target creature gains haste until end of turn.

Aura Fracture

Sacrifice a land: Destroy target enchantment.

Aquamoeba

Discard a card: Switch this creature's power and toughness until end of turn.

Thaumatog

Sacrifice a land: This creature gets +1/+1 until end of turn.
Sacrifice an enchantment: This creature gets +1/+1 until end of turn.

Lithatog

Sacrifice an artifact: This creature gets +1/+1 until end of turn.
Sacrifice a land: This creature gets +1/+1 until end of turn.

Channeled Force

As an additional cost to cast this spell, discard X cards.
Target player draws X cards. Channeled Force deals X damage to up to one target creature or planeswalker.

Aura Extraction

Put target enchantment on top of its owner's library.
Cycling {2} ({2}, Discard this card: Draw a card.)

Fault Riders

Sacrifice a land: This creature gets +2/+0 and gains first strike until end of turn. Activate only once each turn.

Cabal Initiate

Discard a card: This creature gains lifelink until end of turn.
Threshold — This creature gets +1/+2 as long as seven or more cards are in your graveyard.

Barren Glory

At the beginning of your upkeep, if you control no permanents other than this enchantment and have no cards in hand, you win the game.

Conflagrate

Conflagrate deals X damage divided as you choose among any number of targets.
Flashback—{R}{R}, Discard X cards. (You may cast this card from your graveyard for its flashback cost. Then exile it.)