Debase
UBRG
Instant
Choose a creature and remove it from the game. Its controller loses life equal to its power, and you draw that many cards.
Mammoth Kantarka (Needs name change)
BRGW
Creature - Harbinger
4/4
X1, Pay X life: Mammoth Kantarka deals X damage to target creature and to target player.
When Mammoth Kantarka deals damage to a player, you may pay BW. If you do, that player discards a card.
Jurvan Kantarka (Probably needs name change)
RGWU
Creature - Harbinger
3/3
Flying, first strike
2RU, Tap: Look at the top two cards of your library. Put one into your hand and remove the other from the game. Put a +1/+1 counter on Jurvan Kantarka.
Halls of Diamonds
GWUB
Enchantment
During each player's upkeep, that player chooses a creature he or she controls and sacrifices it. If that player does, until end of turn, lands lose their mana abilities and have "Sacrifice this land: Add X mana to your mana pool of a color among those of the creature sacrificed to Halls of Diamonds this turn. If the creature is colorless, the mana is colorless. X is the creature's power. Play this ability as a mana source."
If you don't during your turn, sacrifice Halls of Diamonds.
Hermitage
2U
Enchantment
1UU: Shuffle target creature you control into its owner's library. You draw a card.
Bonedance Curse
3UBB
Enchantment
When Bonedance Curse comes into play, choose target player.
Skip the chosen player's draw step.
Pay 1 life: Draw a card. Only the chosen player may play this ability.
Crystalwood Mantle
GU
Enchant Creature
Enchanted creature gets +1/+1.
1G: Enchanted creature gets +1/+1 until end of turn.
U: Counter target spell that targets enchanted creature.
Talisman of Assertion
0
Artifact
2, Tap: Gain control of a permanent that you own and don't control. Draw a card.
Jurvan Furnacemouth
2R
Creature - Hound
2/2
Sacrifice an artifact: Add R to your mana pool. Play this ability as a mana source.
Skyfire Dragon
4RRU
Creature - Dragon
5/6
RU: Skyfire Dragon deals 1 damage to target creature. That creature has flying until end of turn.
Flying
Ivory Walls
WW
Enchantment
1W: The next time target white creature is damaged this turn, prevent that damage.
Dense Canopy
GG
Enchantment
Creatures you control have protection from creatures with flying.
Tenuous Grasp
1UU
Enchant Creature
2U: Gain control of enchanted creature until end of turn.
Psychic Rift
1UU
Enchantment
U: Draw a card. At the beginning of the next turn, remove Psychic Rift from the game.
Jurvan Priest
GG
Creature - Cleric
1/2
When a creature is tapped for mana, it produces an additional colorless mana.
Tainted Cherub
BB
Creature - Angel
0/1
Flying
1B, Pay 1 life, Tap: Destroy target white creature.
Kinship
2G
Instant
Two target creatures each get +3/+3 until end of turn if they share a color.
Fungal Symbiosis
2GG
Enchantment
When a permanent comes into play, put a spore counter on Fungal Symbiosis.
Pay 3 life, Remove all spore counters from Fungal Symbiosis: Put an X/X green Saproling creature token into play, where X is the number of spore counters removed from Fungal Symbiosis.