Kami of Avarice - 1BB
Creature - Spirit (U)
Whenever you play a Spirit or Arcane spell, you lose 1 life and draw a card.
2/2
(Working name: Kami of Censorship) - 2UU
Creature - Spirit (R)
Flying
Whenever you play a Spirit or Arcane spell, search target player's library for a card and remove that card from the game. Then that player shuffles his or her library.
2/2
Kami of Initiation - R
Creature - Spirit (C)
Whenever you play a Spirit or Arcane spell, target creature gains first strike until end of turn.
1/1
Kami of Salvation - 1W
Creature - Spirit (R)
Whenever you play a Spirit or Arcane spell, you gain 2 life.
2/1
Kami of the Lush Fields - 1GG
Creature - Spirit (R)
Whenever you play a Spirit or Arcane spell, search your library for a basic land card and put that card into play tapped. Then shuffle your library.
2/2
Kami of Immortality - WUBRG
Creature - Spirit (R)
Spirits you control are indestructible.
5/5
(Edit: Someone needs to change the image/smilies limit. I couldn't post my cards until I got rid of all the mana images.)
The only thing I see wrong is that it should be a Legendary Creature - Demon Angel, and Vigilance should be keyworded. And if we changed it to :4mana::symw::symb: like Scuiri suggested, I'd play that card in an instant!
The type line should read "Legendary Creature - Reaper". That said, you should rename it to something like "X, Lady of Death". I think it's too good. Black shouldn't get a 6/5 for 6 with 2 positive abilities. I'd change the mana cost to something like :4mana::symb::symb::symb:.
I think one of the MTG.com writers explained that they would keyword mechanics in mid-block sets more. For example, if Shivan Wurm would be created today, it would read:
Let's start off with an updated version of an As Good as Gold artifact:
Pillar of Thieves -
Artifact
Pay 3 life, :symtap:: Draw a card.
Covetous Wurm - :4mana::symr::symr:
Creature - Wurm
Trample
As long as you don't control an artifact, Covetous Wurm has defender.
Covetous Wurm can't block.
7/7
Convalesment Chamber -
Artifact
At the beginning of your upkeep, gain 2 life.
Cursed Mox -
Artifact
:symtap:, an opponent gains control of a permanent you control: Add 1 mana of any color to your mana pool.
Book of Necropotence -
Artifact
Your maximum hand size is zero.
You skip your draw step.
Pay 2 life: Draw a card.
My favorite card that references snow-covered is Glacial Crevasses which:
1. References ice which is in flavor with Kamigawa Block red.
2. Is against red's fundamental flavor, so it's an oddity.
In a Magic-League master I managed to win 2-0 by double concession when he Rude Awakeninged himself into a Hideous Laughter twice in a row, then accused me of meta'ing against his deck.
Lord of the Beavers - :4mana::symg:
Legendary Creature - Beaver Lord
Beavers you control get +1/+0.
Whenever a Beaver you control deals combat damage to a player, destroy target artifact.
3/4
Next piece of flavor: A shiny bracelet that grants the wearer the ability to shoot holy beams of light.
2. Invasion
3. Urza's Saga
Creature - Spirit (U)
Whenever you play a Spirit or Arcane spell, you lose 1 life and draw a card.
2/2
(Working name: Kami of Censorship) - 2UU
Creature - Spirit (R)
Flying
Whenever you play a Spirit or Arcane spell, search target player's library for a card and remove that card from the game. Then that player shuffles his or her library.
2/2
Kami of Initiation - R
Creature - Spirit (C)
Whenever you play a Spirit or Arcane spell, target creature gains first strike until end of turn.
1/1
Kami of Salvation - 1W
Creature - Spirit (R)
Whenever you play a Spirit or Arcane spell, you gain 2 life.
2/1
Kami of the Lush Fields - 1GG
Creature - Spirit (R)
Whenever you play a Spirit or Arcane spell, search your library for a basic land card and put that card into play tapped. Then shuffle your library.
2/2
Kami of Immortality - WUBRG
Creature - Spirit (R)
Spirits you control are indestructible.
5/5
(Edit: Someone needs to change the image/smilies limit. I couldn't post my cards until I got rid of all the mana images.)
Shivan Wurm - :3mana::symr::symg:
Creature - Wurm
Trample
Gating
7/7
The first instance of this was Gotcha! in Unhinged.
//NAME: R/U Splice by Eliminator
// Other
4 Long-Forgotten Gohei
4 Eerie Procession
4 Peer Through Depths
3 Eye of Nowhere
4 Reach Through Mists
4 Dampen Thought
3 Sift Through Sands
4 Desperate Ritual
4 Glacial Ray
4 Lava Spike
// Lands
11 Island
11 Mountain
SB: 4 Sideswipe
SB: 2 Boseiju, Who Shelters All
SB: 2 Thoughtbind
SB: 3 Kumano, Master Yamabushi
SB: 4 Hinder
I think it can be improved, but only 1 set is out.
Pillar of Thieves -
Artifact
Pay 3 life, :symtap:: Draw a card.
Covetous Wurm - :4mana::symr::symr:
Creature - Wurm
Trample
As long as you don't control an artifact, Covetous Wurm has defender.
Covetous Wurm can't block.
7/7
Convalesment Chamber -
Artifact
At the beginning of your upkeep, gain 2 life.
Cursed Mox -
Artifact
:symtap:, an opponent gains control of a permanent you control: Add 1 mana of any color to your mana pool.
Book of Necropotence -
Artifact
Your maximum hand size is zero.
You skip your draw step.
Pay 2 life: Draw a card.
1. References ice which is in flavor with Kamigawa Block red.
2. Is against red's fundamental flavor, so it's an oddity.
Legendary Creature - Beaver Lord
Beavers you control get +1/+0.
Whenever a Beaver you control deals combat damage to a player, destroy target artifact.
3/4
Next piece of flavor:
A shiny bracelet that grants the wearer the ability to shoot holy beams of light.