Thanks! And sorry for not commenting onthe cards, I was kinda dizzy from reading 6 long, long pages.
But hey, it's all good. Here are my comments on mine and some other cards:
Decaying Zombie
2B
Creature - Zombie
When ~this~ comes into play, you may sacrifice another creature. If you do, destroy target non-black creature.
2/1
I think this is balanced enough, and with all the recursion tricks that black has, this fits its purpose perfectly. It is in a way a weakened Bone Shredder for beatdown decks.
Sky Phoenix
3UR
Creature - Phoenix
Flying
When Sky Phoenix comes into play, you may search your library for a red or blue sorcery card, and then discard 2 cards from your hand. Shuffle your library afterwards.
2/4
The fact with this is that it's a moderately priced flyer, but has a relatively high toughness and can fetch you Hammer, Time Walk, Wheel of Fortune, or Timetwister. That's the resaon I gave it the "discard two cards" ability. Maybe, if it's too weak this way, I should add: draw a card in the beginning of the next turn's upkeep, or something like that.
I changed the next card's text from "two non-green creatures" to "two non-token creatures".
~
2BG
Sorcery
As an additional cost to ~this~ sacrifice two non-token creatures you
control. Search your library for a Creature card and put it into play.
Draw a card.
Yeah, this can fetch a Morphling at a price of 4 mana, but the mana is off color and requires an additional price as well.
If you guys think that any of my cards are broken, crappy, or need some sort of wording, tell me.
Now, onto some other cards:
Shadowfire Aura BR
Enchant Creature
Shadowfire Aura has Protection from white.
Enchanted creature gains "T : Destroy target white creature if it is attacking."
This is good and balanced, but perhaps even too weak. Not too bad, but white usually has a lot of ways to deal with enchantments.
Stone of Order 2
Artifact
2, Sacrifice Stone of Order : All players with more than four cards in hand discard cards until they each have four cards in hand.
This is ok. It can be a pretty good drop against those decks that draw like crazy.
Stone of Chaos 3
Artifact
3, Sacrifice Stone of Chaos : All players with less than four cards in hand draw cards until they each have four cards in hand.
This is awesome, yet not broken. It is a card against a control deck also, since they usually have 4 or more cards in hand, and it allows you to refill your hand with goodies.
Quadrifiend BBBB
Creature - Demon
Whenever Quadirifiend is put into a graveyard from play, you may remove it from the game to put 4 3/2 Black Demon tokens into play tapped. Lose 4 life if you do so.
3/2
Oh come on, I'm not sure what the previous version was, but this is still broken. Imagine it with a Phyrexian Ghoul or a Fallen Angel. It's a Breeding Pit on steroids. Don't get me wrong, I love the idea, but this is way too powerful. 4 life is not really a price when on the next(or the same) turn you can hit your opponent for 12 damage.
Exert Power RRR
Sorcery
As an additional cost to play this spell, discard a card at random. If that card has a casting cost of 2 or less, counter Exert Power. Destroy all tapped permanents, then tap all artifacts, lands, and creatures.
Very interesting. This can definitely see play in those Phoenix Haups decks, if those still get played. And this is a fun set, right? (I mean there can be cards for casual decks as well). This is not bad. Its great with Turnabout or Breaking Wave.
Dimensional Vortex 2WUB
Enchantment
Creatures cannot be played.
During your upkeep, sacrifice a land, or sacrifice Dimensional Vortex.
When Dimensional Vortex leaves play, return all creatures to thier owner's hand.
Add "in play" after" return all creatures"... Anyways, This is nice. It is part Evacuation, part... well, it's a very original idea. Upkeep is not a small one, but this card can help WUB decks battle creature based strategies.
Lightning Oracle RU
Creature - Wizard
Whenever a player is dealt damage, that player may look at the top X cards of his or her library and arrange them in any order, where X is the amount of damage dealt.
3/2
Maybe a 2/2 would be more balanced? Still a very cool card.
Life Magi GU
Creature - Wizard
Discard a card : Target creature is +1+1 until end of turn.
Discard a card : Target player gains 2 life.
2/2
Maybe:
"Discard a card: Target player gains oe life or prevent the next one damage that would be dealt to target creature this turn"? 2 life a card makes it too Combo-with-bargain-like.
I like the casting cost and the creature pump ability.
Good Job!