Anybody rate magic decks?

Question

Heres mine:

23 swamps

Creatures

4 stinkweed imp

2 crowd of cinders

1 nightmare

1 wisp lancer

1 ascendant evincar

2 prickly boggart

instants

4 cradle to grave

4 dash hopes

2 scar

Sorcery

1 smallpox

1 corrupt

1 hex

Enchantments

4 feebleness

4 torpor dust

4 nettling curse

3 enfeeblement

1 circle of affliction

1 torment

1 seal of doom

1 pooling venom

1 torture

1 contaminated bond

My main strategy is trying to enchant my opponets creatures to stop them from being able to block or attack(by weaking thier strength and defense) or to kill them off. If anyone finds some other ideas for my deck please say so.

Answer 1

The best cards for that would be:

Ascendant Evincar

Other black creatures get +1/+1.

Nonblack creatures get -1/-1.

And Nameless Inversion (instant)

Target creature gets +3/-3 and loses all creature types until end of turn.

Answer 2

Since the deck focuses so much on weakening yor opponent's creatures, I would recommend Contagion.

Contagion

Casting cost: 3BB

Instant

You may pay 1 life and remove a black card in your hand from the game rather than pay Contagion's mana cost.

Distribute two -2/-1 counters among one or two target creatures.

Also, if you don't mind the color limitation, Snuff Out would also work for this deck.  All your lands could be tapped and you could still play it.  If you're up against another black deck, you could always use it to pay Contagion's alternate cost.

Snuff Out

Casting Cost: 3B

Instant

If you control a Swamp, you may pay 4 life rather than pay Snuff Out's mana cost.

Destroy target nonblack creature. It can't be regenerated.