Steelmonger2RW
Creature - Dwarf Monger Artificer (Rare) 3: Create a 1/1 colorless Servo artifact creature token. Any player may activate this ability. (That player creates the token.) "Army in a can? Why waste the can?"
3/3
Council's Summit3W
Sorcery (Rare) Converge — For each color of mana spent to cast this spell, search your library for an Advisor creature card of that color, reveal it, then put it into your hand. Then shuffle your library. The ambassadors had never been allies, but desperate times call for setting differences aside.
Stitcher Engine5
Artifact (Rare)
If a nontoken creature you control would die, instead exile it and put a charge counter on Stitcher Engine.
At the beginning of your upkeep, you may remove any number of charge counters from Stitcher Engine. If you do, create a tapped 2/2 black Zombie creature token for each counter removed this way. A stitcher's touch on Ghoulcalling.
Zeal 2RR
Creature — Incarnation (Rare)
This spell can't be countered.
First Strike
Zeal enters the battlefield with a +1/+1 counter on it for each creature that attacked this turn. 1R: Spells you cast this turn can't be countered. Activate this ability if Zeal is in your graveyard and only any time you could cast a sorcery.
0/0
Kabu, Honden TrailerURWG
Legendary Creature - Human Monk (Rare)
Whenever you cast an Enchantment spell, if Kabu, Honden Trailer is on the battlefield or in the command zone, you may pay 1UR. If you do, create a token that's a copy of target enchantment, except it isn't legendary if the enchantment is Legendary, and it's a Shrine in addition to its other types. 1GW, T: Create a 1/1 White Monk creature token with Prowess for each Shrine you control.
2/4
Wibbly Wobbly Portal3RR
Sorcery (Un-Rare)
Flip the top card of your library onto the table. If it's the only card flipped this way and it lands face up, play that card without paying its mana cost. Otherwise, shuffle your library. Repeat this process twice. "Pulling in horrors from the Blind Eternities was Brog's favourite party trick.
Blightsteel Throne6
Legendary Artifact (Mythic Rare)
As long as you control a Legendary Praetor or Karn Planeswalker, artifacts you control have Indestructible. 2: Target noncreature artifact becomes an artifact creature with base power and toughness equal to its converted mana cost until end of turn. It gains Infect until end of turn. A remnant of the Father of Machines.
I feel that Rudyard has a point, it's a much slower process to pick two aspects and figure out what to do with them you know?
Streets, Sacrifice
Tin Street Massacre3RR
Sorcery (Rare)
For each creature with power 3 or less your opponents control, gain control of that creature until end of turn unless its controller sacrifices it. Untap those creatures. They gain haste until end of turn. The urge to fight was so strong, even the Orzhov joined in.
Arbiter of Preservation4WW
Creature - Giant Wizard (Rare)
Vigilance
Players can't win or lose the game.
Whenever another nontoken creature dies, it's owner return it to their hand at the beginning of the next end step. "All life has equal value. I shall not allow a single death."
7/7
Borrowed Time2RR
Sorcery (Mythic Rare)
Take an extra turn after this one. At the beginning of that turn's end step, skip your next turn. Exile Borrowed Time. Time always collects its due.
Estuary Rusalka4U
Creature - Spirit (Uncommon) 1U: Target creature can't be blocked this turn. "Sure we can cross the river without her help, but then you've got the snidds to worry about."
-Dmetri, Kosha Merchant
3/3
Traveller's License4
Artifact (Rare)
When Traveller's License enters the battlefield, name a plane, then if you're on a plane card that isn't that plane, planeswalk.
Creatures you control can't be blocked as long as you're on a plane card from the named plane. Holder is granted unlimited access to public transport as specified in article 511-AE/-B26, Planar Gates excepted.
Cemetery Rising2BB
Enchantment (Mythic Rare)
Cumulative Upkeep - Put the top card of your library into your graveyard. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your upkeep, if there are exactly thirteen creature cards in your graveyard, sacrifice Cemetery Rising and return each of those creatures to the battlefield under your control.
NC for yesterday: Extra Steps/Turnz
NC for tomorrow: Sacrifice
Reflection Mask3
Artifact - Equipment (Uncommon)
Equipped creature has hexproof from its colors.
Equipped creature can't be blocked except by creatures that share a colour with it.
Equip 2 It blinds us to our true nature, but in turn shields us from the world we wish to hide from.
So I remember Brandosando saying he believes Davriel to be a UB character but has a greater likelihood of being printed at monoblack. So here we go:
Davriel Cane3UB
Legendary Planeswalker - Davriel (Mythic Rare)
[+1]: Target player exiles a card from their hand. Until end of turn, you may play that card.
[-2]: Search your library for a card and put that card into your hand. Then shuffle your library.
[-6]: Target player gets an Emblem with "Whenever you cast a spell, you lose 5 life unless you discard two cards."
Starting Loyalty: 3
Creature - Dwarf Monger Artificer (Rare)
3: Create a 1/1 colorless Servo artifact creature token. Any player may activate this ability. (That player creates the token.)
"Army in a can? Why waste the can?"
3/3
IIW: Colorless Magus
Council's Summit 3W
Sorcery (Rare)
Converge — For each color of mana spent to cast this spell, search your library for an Advisor creature card of that color, reveal it, then put it into your hand. Then shuffle your library.
The ambassadors had never been allies, but desperate times call for setting differences aside.
NC: Exile matters
Artifact (Rare)
If a nontoken creature you control would die, instead exile it and put a charge counter on Stitcher Engine.
At the beginning of your upkeep, you may remove any number of charge counters from Stitcher Engine. If you do, create a tapped 2/2 black Zombie creature token for each counter removed this way.
A stitcher's touch on Ghoulcalling.
Creature — Incarnation (Rare)
This spell can't be countered.
First Strike
Zeal enters the battlefield with a +1/+1 counter on it for each creature that attacked this turn.
1R: Spells you cast this turn can't be countered. Activate this ability if Zeal is in your graveyard and only any time you could cast a sorcery.
0/0
Shrines, Command Zone
Kabu, Honden Trailer URWG
Legendary Creature - Human Monk (Rare)
Whenever you cast an Enchantment spell, if Kabu, Honden Trailer is on the battlefield or in the command zone, you may pay 1UR. If you do, create a token that's a copy of target enchantment, except it isn't legendary if the enchantment is Legendary, and it's a Shrine in addition to its other types.
1GW, T: Create a 1/1 White Monk creature token with Prowess for each Shrine you control.
2/4
NC: Enchantment tokens
Sorcery (Un-Rare)
Flip the top card of your library onto the table. If it's the only card flipped this way and it lands face up, play that card without paying its mana cost. Otherwise, shuffle your library. Repeat this process twice.
"Pulling in horrors from the Blind Eternities was Brog's favourite party trick.
IIW: First Pickable Uncommons (in draft)
Legendary Artifact (Mythic Rare)
As long as you control a Legendary Praetor or Karn Planeswalker, artifacts you control have Indestructible.
2: Target noncreature artifact becomes an artifact creature with base power and toughness equal to its converted mana cost until end of turn. It gains Infect until end of turn.
A remnant of the Father of Machines.
IIW: Australia
I feel that Rudyard has a point, it's a much slower process to pick two aspects and figure out what to do with them you know?
Streets, Sacrifice
Tin Street Massacre 3RR
Sorcery (Rare)
For each creature with power 3 or less your opponents control, gain control of that creature until end of turn unless its controller sacrifices it. Untap those creatures. They gain haste until end of turn.
The urge to fight was so strong, even the Orzhov joined in.
Next Challenge: Command Zone
Giants, You can't win the game
Arbiter of Preservation 4WW
Creature - Giant Wizard (Rare)
Vigilance
Players can't win or lose the game.
Whenever another nontoken creature dies, it's owner return it to their hand at the beginning of the next end step.
"All life has equal value. I shall not allow a single death."
7/7
New Challenge: Archenemy
Sorcery (Mythic Rare)
Take an extra turn after this one. At the beginning of that turn's end step, skip your next turn. Exile Borrowed Time.
Time always collects its due.
Creature - Spirit (Uncommon)
1U: Target creature can't be blocked this turn.
"Sure we can cross the river without her help, but then you've got the snidds to worry about."
-Dmetri, Kosha Merchant
3/3
IIW: Gods with an additional subtype
Artifact (Rare)
When Traveller's License enters the battlefield, name a plane, then if you're on a plane card that isn't that plane, planeswalk.
Creatures you control can't be blocked as long as you're on a plane card from the named plane.
Holder is granted unlimited access to public transport as specified in article 511-AE/-B26, Planar Gates excepted.
IIW: Lifegain
Thirteen + Old Keyword with a twist
Cemetery Rising 2BB
Enchantment (Mythic Rare)
Cumulative Upkeep - Put the top card of your library into your graveyard. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)
At the beginning of your upkeep, if there are exactly thirteen creature cards in your graveyard, sacrifice Cemetery Rising and return each of those creatures to the battlefield under your control.
NC for yesterday: Extra Steps/Turnz
NC for tomorrow: Sacrifice
Artifact - Equipment (Uncommon)
Equipped creature has hexproof from its colors.
Equipped creature can't be blocked except by creatures that share a colour with it.
Equip 2
It blinds us to our true nature, but in turn shields us from the world we wish to hide from.
IIW: Mongol Empire
So I remember Brandosando saying he believes Davriel to be a UB character but has a greater likelihood of being printed at monoblack. So here we go:
Davriel Cane 3UB
Legendary Planeswalker - Davriel (Mythic Rare)
[+1]: Target player exiles a card from their hand. Until end of turn, you may play that card.
[-2]: Search your library for a card and put that card into your hand. Then shuffle your library.
[-6]: Target player gets an Emblem with "Whenever you cast a spell, you lose 5 life unless you discard two cards."
Starting Loyalty: 3
IIW: Giants