The Ur-Dragon
Haakon, Stromgald Scourge
Morophon, the Boundless
Nameless Inversion

   Prerequisites

What do I need to start this combo?
The Ur-Dragon on the battlefield or in the command zone.
Nameless Inversion in hand or in your graveyard.
Haakon and Morophon on the battlefield.

   Steps

How does this combo work?
1
Cast Nameless Inversion from your graveyard, as it is a Knight card, by paying 0 due to The Ur-Dragon and Morophon, giving a creature +3/-3 until end of turn.
2
If the creature has toughness 0 or less, the creature dies as a state-based action.
3
Repeat as desired.

   Results

What do I get from this combo?
Reduce the toughness of opponents' creatures to 0 when it enters the battlefield
Reduce any number of target creatures' toughness to 0
The Ur-Dragon
1.12% of 37978 decks 427 decks
Reaper King
0.03% of 6184 decks 2 decks
Rukarumel, Biologist
0.05% of 3923 decks 2 decks
Morophon, the Boundless
0.02% of 11997 decks 2 decks
Ulalek, Fused Atrocity
0.01% of 19674 decks 1 decks
New Cards
Thrumming Hivepool
20% of 49 decks +14% synergy
Choco, Seeker of Paradise
19% of 104 decks +18% synergy
Torgal, A Fine Hound
19% of 95 decks +17% synergy
Summon: Leviathan
12% of 112 decks +10% synergy
Starting Town
11% of 112 decks -0% synergy
High Synergy Cards
Amoeboid Changeling
97% of 434 decks +95% synergy
Universal Automaton
96% of 434 decks +94% synergy
Masked Vandal
96% of 434 decks +94% synergy
Changeling Outcast
97% of 434 decks +94% synergy
Magda, Brazen Outlaw
95% of 434 decks +93% synergy
Mirror Entity
98% of 434 decks +93% synergy
Taurean Mauler
96% of 434 decks +93% synergy
Crib Swap
96% of 434 decks +92% synergy
Maskwood Nexus
97% of 434 decks +91% synergy
Unsettled Mariner
94% of 434 decks +91% synergy
Top Cards
Realmwalker
97% of 434 decks +89% synergy
Risen Reef
93% of 434 decks +90% synergy
Shapesharer
91% of 434 decks +90% synergy
Mothdust Changeling
90% of 434 decks +89% synergy
Impostor of the Sixth Pride
90% of 434 decks +88% synergy
Guardian Gladewalker
89% of 434 decks +88% synergy
Harabaz Druid
89% of 434 decks +88% synergy
Cloudshredder Sliver
89% of 434 decks +80% synergy
Skeletal Changeling
87% of 434 decks +86% synergy
Reaper King
86% of 434 decks +85% synergy
Game Changers
Yuriko, the Tiger's Shadow
85% of 434 decks +84% synergy
Creatures
Knight Exemplar
85% of 434 decks +84% synergy
Woodland Changeling
84% of 434 decks +83% synergy
Valiant Changeling
83% of 434 decks +82% synergy
Fire-Belly Changeling
77% of 434 decks +76% synergy
Voja, Jaws of the Conclave
75% of 395 decks +74% synergy
Three Tree Mascot
74% of 346 decks +72% synergy
Priest of Titania
70% of 434 decks +70% synergy
Sylvia Brightspear
68% of 434 decks +66% synergy
Feline Sovereign
65% of 434 decks +64% synergy
Tovolar, Dire Overlord
63% of 434 decks +63% synergy
Rivaz of the Claw
59% of 434 decks +51% synergy
Heronblade Elite
57% of 434 decks +56% synergy
Spellstutter Sprite
56% of 434 decks +56% synergy
Tiamat
55% of 434 decks +47% synergy
Manaweft Sliver
53% of 434 decks +44% synergy
Merrow Reejerey
53% of 434 decks +52% synergy
Harmonic Sliver
53% of 434 decks +45% synergy
Muerra, Trash Tactician
51% of 346 decks +51% synergy
Gemhide Sliver
50% of 434 decks +42% synergy
Hakbal of the Surging Soul
49% of 414 decks +48% synergy
Titan of Littjara
49% of 434 decks +47% synergy
Realm-Cloaked Giant
44% of 434 decks +44% synergy
Irregular Cohort
42% of 434 decks +40% synergy
Kibo, Uktabi Prince
39% of 434 decks +39% synergy
Thundercloud Shaman
38% of 434 decks +38% synergy
Breeches, Eager Pillager
37% of 422 decks +37% synergy
Malcolm, Keen-Eyed Navigator
37% of 434 decks +37% synergy
Greymond, Avacyn's Stalwart
37% of 434 decks +36% synergy
Graveshifter
36% of 434 decks +34% synergy
Unesh, Criosphinx Sovereign
35% of 434 decks +35% synergy
Giada, Font of Hope
34% of 434 decks +33% synergy
Katilda, Dawnhart Prime
33% of 434 decks +31% synergy
Ingenious Infiltrator
32% of 434 decks +31% synergy
Avian Changeling
32% of 434 decks +31% synergy
Bloodline Pretender
26% of 434 decks +24% synergy
Thurid, Mare of Destiny
23% of 287 decks +23% synergy
Hellkite Courser
23% of 434 decks +17% synergy
Prosperous Thief
21% of 434 decks +20% synergy
Venomous Changeling
18% of 434 decks +17% synergy
Be'lakor, the Dark Master
17% of 434 decks +17% synergy
Mistwalker
17% of 434 decks +17% synergy
Sea Gate Loremaster
14% of 434 decks +13% synergy
Gornog, the Red Reaper
13% of 287 decks +12% synergy
Barkform Harvester
12% of 346 decks +12% synergy
Miirym, Sentinel Wyrm
12% of 434 decks +1% synergy
Herald of Hoofbeats
12% of 434 decks +11% synergy
Shadow-Rite Priest
12% of 434 decks +11% synergy
Roaming Throne
11% of 411 decks +1% synergy
The First Sliver
10% of 434 decks +7% synergy
Atla Palani, Nest Tender
10% of 434 decks +8% synergy
Instants
Blades of Velis Vel
82% of 434 decks +82% synergy
Wings of Velis Vel
53% of 434 decks +52% synergy
Shields of Velis Vel
18% of 434 decks +18% synergy
Stinging Study
18% of 434 decks +17% synergy
Entomb
12% of 434 decks +10% synergy
Swords to Plowshares
11% of 434 decks -29% synergy
Heroic Intervention
10% of 434 decks -11% synergy
Flame of Anor
8% of 434 decks +8% synergy
Absorb Identity
5% of 434 decks +5% synergy
Concerted Defense
5% of 434 decks +5% synergy
Sorceries
Coveted Prize
82% of 434 decks +81% synergy
Peer Pressure
79% of 434 decks +78% synergy
Cateran Summons
72% of 434 decks +72% synergy
Widespread Brutality
68% of 434 decks +68% synergy
Notorious Throng
58% of 434 decks +57% synergy
Viewpoint Synchronization
44% of 351 decks +41% synergy
Exterminate!
26% of 434 decks +26% synergy
Crux of Fate
25% of 434 decks +16% synergy
Farseek
16% of 434 decks -28% synergy
Bring to Light
15% of 434 decks +11% synergy
Formless Genesis
11% of 322 decks +11% synergy
Jarad's Orders
11% of 434 decks +11% synergy
Wargate
10% of 434 decks +9% synergy
Eagle Vision
9% of 351 decks +6% synergy
Buried Alive
9% of 434 decks +8% synergy
Nature's Lore
8% of 434 decks -19% synergy
Three Visits
8% of 434 decks -16% synergy
Whelming Wave
7% of 434 decks +6% synergy
Cultivate
6% of 434 decks -30% synergy
Imposing Grandeur
5% of 434 decks +5% synergy
Majestic Genesis
5% of 434 decks +3% synergy
Utility Artifacts
Throne of the Grim Captain
38% of 414 decks +38% synergy
Pyre of Heroes
8% of 434 decks +7% synergy
Realmbreaker, the Invasion Tree
8% of 434 decks +6% synergy
Enchantments
Liliana's Contract
81% of 434 decks +80% synergy
The Bears of Littjara
64% of 434 decks +63% synergy
Kindred Discovery
63% of 434 decks +51% synergy
Black Market Connections
29% of 434 decks +23% synergy
Unholy Annex // Ritual Chamber
28% of 323 decks +25% synergy
Call the Spirit Dragons
14% of 175 decks +6% synergy
Dragon Tempest
13% of 434 decks +4% synergy
Sidequest: Raise a Chocobo
9% of 88 decks +8% synergy
Battle of Frost and Fire
9% of 434 decks +9% synergy
Arcane Adaptation
8% of 434 decks +7% synergy
Rooftop Storm
8% of 434 decks +8% synergy
Double Down
6% of 366 decks +6% synergy
Curse of Opulence
6% of 434 decks +5% synergy
Leyline of Transformation
5% of 326 decks +4% synergy
Utility Lands
Swarmyard
75% of 434 decks +74% synergy
Mutavault
63% of 434 decks +62% synergy
Flamekin Village
56% of 434 decks +55% synergy
Griffin Canyon
41% of 434 decks +41% synergy
Three Tree City
12% of 346 decks +4% synergy
Reliquary Tower
6% of 434 decks -19% synergy
Riptide Laboratory
6% of 434 decks +6% synergy
Mana Artifacts
Arcane Signet
38% of 434 decks -37% synergy
Sol Ring
35% of 434 decks -43% synergy
Mox Jasper
35% of 199 decks +29% synergy
Chromatic Lantern
24% of 434 decks -27% synergy
Dragon's Hoard
23% of 434 decks +15% synergy
Fellwar Stone
11% of 434 decks -21% synergy
Lands
Command Tower
97% of 434 decks +8% synergy
The World Tree
94% of 434 decks +64% synergy
Exotic Orchard
88% of 434 decks +26% synergy
Path of Ancestry
84% of 434 decks +42% synergy
Murmuring Bosk
79% of 434 decks +76% synergy
Ancient Amphitheater
71% of 434 decks +71% synergy
Wanderwine Hub
67% of 434 decks +67% synergy
Secluded Glen
66% of 434 decks +66% synergy
Reflecting Pool
65% of 434 decks +49% synergy
Gilt-Leaf Palace
64% of 434 decks +64% synergy
City of Brass
62% of 434 decks +42% synergy
Fortified Beachhead
59% of 434 decks +59% synergy
Ketria Triome
57% of 434 decks +32% synergy
Auntie's Hovel
57% of 434 decks +57% synergy
Zagoth Triome
57% of 434 decks +34% synergy
Indatha Triome
55% of 434 decks +32% synergy
Cavern of Souls
55% of 434 decks +38% synergy
Raugrin Triome
52% of 434 decks +34% synergy
Mana Confluence
51% of 434 decks +32% synergy
Rejuvenating Springs
51% of 434 decks +43% synergy
Wooded Foothills
50% of 434 decks +24% synergy
Training Center
48% of 434 decks +43% synergy
Undergrowth Stadium
48% of 434 decks +42% synergy
Gallifrey Council Chamber
47% of 421 decks +46% synergy
Spire Garden
45% of 434 decks +38% synergy
Vault of Champions
44% of 434 decks +39% synergy
Spectator Seating
44% of 434 decks +38% synergy
Morphic Pool
43% of 434 decks +38% synergy
Haven of the Spirit Dragon
37% of 434 decks +29% synergy
Windswept Heath
29% of 434 decks +2% synergy
Overgrown Tomb
27% of 434 decks -1% synergy
Savai Triome
26% of 434 decks +9% synergy
Stomping Ground
25% of 434 decks -3% synergy
Watery Grave
25% of 434 decks +1% synergy
Breeding Pool
25% of 434 decks -4% synergy
Hallowed Fountain
25% of 434 decks -1% synergy
Temple Garden
25% of 434 decks -4% synergy
Misty Rainforest
22% of 434 decks -5% synergy
Secluded Courtyard
22% of 434 decks +5% synergy
Flooded Strand
22% of 434 decks -3% synergy
Bountiful Promenade
21% of 434 decks +14% synergy
Marsh Flats
21% of 434 decks -3% synergy
Verdant Catacombs
21% of 434 decks -6% synergy
Luxury Suite
21% of 434 decks +15% synergy
Ally Encampment
20% of 434 decks +19% synergy
Godless Shrine
20% of 434 decks -4% synergy
Polluted Delta
19% of 434 decks -4% synergy
Scalding Tarn
19% of 434 decks -5% synergy
Steam Vents
19% of 434 decks -5% synergy
Sea of Clouds
18% of 434 decks +12% synergy