Skull Eater - 3 Artifact Creature - Insect
Weaponize 2(2: This card becomes an Equipment, then attach it to target creature you control. Activate this ability only at any time you could cast a sorcery. This card becomes a creature again if it's not attached to a creature.)
Equipped creature gets +0/+1.
Whenever Skull Eater or equipped creature dies, draw a card. 0/1
Painter's Palette - 3 Artifact
As Painter's Palette enters the battlefield, choose a color. T: Add one mana of the chosen color. T: Until your next turn, spells and permanents your opponents control are the chosen color in addition to their other colors.
Complete the CardU
Meta Sorcery (You may cast this spell for U whenever an opponent sneezes as loudly as a Nerf shotgun.)
Draw on target Hasbro product, then
Beholder of Beings - 1WUBRG Legendary Creature - Elemental
For each color among Elemental creatures you control, Beholder of Beings costs one less mana of that color to cast. This effect reduces only the amount of colored mana you pay.
When Beholder of Beings enters the battlefield, you may search your library for an Elemental card, reveal it, and put it into your hand. Then shuffle your library.
When Beholder of Beings leaves the battlefield, you may return another target Elemental card from your graveyard to your hand.
Evoke 1WUBRG 7/7
Skeletal Messenger - So it's Reassembling Skeleton with a dash of Phyrexian Rager. The reanimation effect is pretty costly for rather meager gains (drawing a card and losing 1 life is probably worth 1 mana at most, and of course Reassembling Skeleton is worth 1B, paying an extra 2 for the re-usability), so it's more of a mana sink later in the game than a real resource.
My first thought was of course Skullclamp, but then Reassembling Skeleton does that better because 2B for 2 cards is better than 4BB and 1 life for 3 cards.
You could probably lower the reanimation's mana cost and require a discard as well, making a sort of spiritual successor to Undead Gladiator.
/-/-/
Bear Down - 1G Sorcery
Search your library for a green creature card with converted mana cost, power, and toughness of 2 and put that card onto the battlefield. Then shuffle your library. 1G, Exile Bear Down from your graveyard: Create a 2/2 green Bear creature token named Grizzly Bears. Activate this ability only any time you could cast a sorcery.
For reference, there are currently 135 cards that this can tutor for.
That being said, it should probably only be able to remove (any type of) counters from (any type of) permanents your opponents control in order to prevent cheese combos.
Necromancer Adept - He doesn't seem to be too adept at his craft if he can only summon a single 1/1 Skeleton that instantly dies when he's gone. Considering an apprentice is capable of reanimating an entire creature, even if only temporarily.
Name aside, though, it looks pretty standard fare for black's "2 P/T for 1 with a drawback" schtick. It could probably be a common, like most ofitsbrethren, since you only actually have to take out the 1/1 Necromancer to kill both of them. Unless it's in a set with enough ways to abuse its being two bodies, of course.
/-/-/
Ascetics of Deep Shadow - BG Creature - Elf Druid(R)
Whenever you activate a mana ability of a creature you control, you lose 2 life and add one mana of any type that ability could produce.
1/2
Verdant Chasm
Land
When another land you control is tapped for the first time each turn, you lose the game unless you sacrifice a nonland permanent. T: Create a land token with "T: Add 3, then sacrifice
Voidmage Mesmerizer - 3UU Creature - Human Wizard
Flash
When Voidmage Mesmerizer enters the battlefield, counter target activated ability from a creature source. If that creature is on the battlefield, gain control of it. Otherwise, put that creature onto the battlefield under your control. 1/2
Grandiose, Choir to the Heavens - 1WW Legendary Creature - Human Cleric
Whenever you lose life, you may look at that many cards from the top of your library. You may reveal an Angel creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
You may cast Angel creature spells as though they had flash as long as their converted mana cost is equal to or less than the amount of life you've lost this turn. 2/3
I meant to type 1, but added another 1 by mistake and figured, eh, let them roll with it.
Skull Eater - 3
Artifact Creature - Insect
Weaponize 2 (2: This card becomes an Equipment, then attach it to target creature you control. Activate this ability only at any time you could cast a sorcery. This card becomes a creature again if it's not attached to a creature.)
Equipped creature gets +0/+1.
Whenever Skull Eater or equipped creature dies, draw a card.
0/1
Instant
All
Artifact
As Painter's Palette enters the battlefield, choose a color.
T: Add one mana of the chosen color.
T: Until your next turn, spells and permanents your opponents control are the chosen color in addition to their other colors.
Next: Tawnos, Urza's Apprentice
Meta Sorcery
(You may cast this spell for U whenever an opponent sneezes as loudly as a Nerf shotgun.)
Draw on target Hasbro product, then
Is it that much more complex than 0/0 creatures that enter the battlefield with +1/+1 counters on them?
We've had some of those recently at common.
Not to mention them being more or less backwards living weapons, which also had one at common.
Legendary Creature - Elemental
For each color among Elemental creatures you control, Beholder of Beings costs one less mana of that color to cast. This effect reduces only the amount of colored mana you pay.
When Beholder of Beings enters the battlefield, you may search your library for an Elemental card, reveal it, and put it into your hand. Then shuffle your library.
When Beholder of Beings leaves the battlefield, you may return another target Elemental card from your graveyard to your hand.
Evoke 1WUBRG
7/7
Next: A commander with Emerge
"Whenever a creature you control attacks or blocks, you gain 1 life."
Soul Link has two lines because dealing and being dealt damage aren't mutually exclusive events.
My first thought was of course Skullclamp, but then Reassembling Skeleton does that better because 2B for 2 cards is better than 4BB and 1 life for 3 cards.
You could probably lower the reanimation's mana cost and require a discard as well, making a sort of spiritual successor to Undead Gladiator.
/-/-/
Bear Down - 1G
Sorcery
Search your library for a green creature card with converted mana cost, power, and toughness of 2 and put that card onto the battlefield. Then shuffle your library.
1G, Exile Bear Down from your graveyard: Create a 2/2 green Bear creature token named Grizzly Bears. Activate this ability only any time you could cast a sorcery.
For reference, there are currently 135 cards that this can tutor for.
Just makes the cheese a bit more complicated.
I guess it's not really cheese at that point, though.
Name aside, though, it looks pretty standard fare for black's "2 P/T for 1 with a drawback" schtick. It could probably be a common, like most of its brethren, since you only actually have to take out the 1/1 Necromancer to kill both of them. Unless it's in a set with enough ways to abuse its being two bodies, of course.
/-/-/
Ascetics of Deep Shadow - BG
Creature - Elf Druid (R)
Whenever you activate a mana ability of a creature you control, you lose 2 life and add one mana of any type that ability could produce.
1/2
Meta Sorcery
(You
The part in parenthesis here is to explain what's special about meta sorceries, just FYI. Like the text on legendary sorceries.
Land
When another land you control is tapped for the first time each turn, you lose the game unless you sacrifice a nonland permanent.
T: Create a land token with "T: Add 3, then sacrifice
Creature - Human Wizard
Flash
When Voidmage Mesmerizer enters the battlefield, counter target activated ability from a creature source. If that creature is on the battlefield, gain control of it. Otherwise, put that creature onto the battlefield under your control.
1/2
Legendary Creature - Human Cleric
Whenever you lose life, you may look at that many cards from the top of your library. You may reveal an Angel creature card from among them and put it into your hand. Put the rest on the bottom of your library in any order.
You may cast Angel creature spells as though they had flash as long as their converted mana cost is equal to or less than the amount of life you've lost this turn.
2/3
Next: Legendary jellyfish