Thalia and The Gitrog Monster + Royal Assassin + Thornbite Staff

Thalia and The Gitrog Monster
Royal Assassin
Thornbite Staff

Requires
Thalia and The Gitrog Monster must be on the battlefield. Royal Assassin must be on the battlefield. Thornbite Staff must be on the battlefield. Royal Assassin does not have summoning sickness. Thornbite Staff attached to Royal Assassin.
Steps
  1. Whenever a creature enters the battlefield under an opponent's control, it enters tapped due to Thalia and the Gitrog Monster.
  2. Holding priority, activate Royal Assassin by tapping it, destroying the creature.
  3. When the creature dies, Royal Assassin triggers, untapping Royal Assassin.
  4. Repeat.
Results
Destroy all creatures that enter the battlefield under an opponent's control.

Top Commanders (1)
Thalia and The Gitrog Monster
0.37% of 9832 decks 36 decks
High Synergy Cards (10)
Ramunap Excavator
74% of 39 decks +71% synergy
Scute Swarm
67% of 39 decks +62% synergy
Drana and Linvala
62% of 32 decks +61% synergy
The Gitrog Monster
62% of 39 decks +60% synergy
Felidar Retreat
62% of 39 decks +58% synergy
Lotus Cobra
59% of 39 decks +56% synergy
Assassin's Trophy
54% of 39 decks +48% synergy
Tireless Provisioner
49% of 39 decks +44% synergy
Avacyn's Pilgrim
46% of 39 decks +43% synergy
Titania, Protector of Argoth
44% of 39 decks +42% synergy
Top Cards (10)
Conduit of Worlds
69% of 36 decks +66% synergy
Swords to Plowshares
67% of 39 decks +38% synergy
Crucible of Worlds
56% of 39 decks +54% synergy
Birds of Paradise
54% of 39 decks +42% synergy
Esper Sentinel
54% of 39 decks +44% synergy
Eternal Witness
49% of 39 decks +38% synergy
Azusa, Lost but Seeking
44% of 39 decks +40% synergy
Grand Abolisher
44% of 39 decks +40% synergy
Braids, Arisen Nightmare
42% of 38 decks +38% synergy
Exploration
41% of 39 decks +37% synergy
Creatures (50)
Emeria Angel
33% of 39 decks +32% synergy
Ancient Greenwarden
33% of 39 decks +31% synergy
Drannith Magistrate
33% of 39 decks +30% synergy
Dauthi Voidwalker
33% of 39 decks +28% synergy
Sakura-Tribe Elder
33% of 39 decks +24% synergy
Llanowar Elves
33% of 39 decks +23% synergy
Delighted Halfling
31% of 16 decks +24% synergy
Tireless Tracker
31% of 39 decks +28% synergy
Rampaging Baloths
31% of 39 decks +27% synergy
Dryad of the Ilysian Grove
31% of 39 decks +27% synergy
Avenger of Zendikar
31% of 39 decks +26% synergy
Sylvan Safekeeper
28% of 39 decks +27% synergy
Kodama of the East Tree
28% of 39 decks +26% synergy
Deathrite Shaman
28% of 39 decks +25% synergy
Opposition Agent
28% of 39 decks +24% synergy
Witherbloom Apprentice
26% of 39 decks +25% synergy
Ob Nixilis, the Fallen
26% of 39 decks +25% synergy
Thalia, Heretic Cathar
26% of 39 decks +24% synergy
Thalia, Guardian of Thraben
26% of 39 decks +24% synergy
Elesh Norn, Grand Cenobite
26% of 39 decks +23% synergy
Knight of the Reliquary
23% of 39 decks +23% synergy
Maja, Bretagard Protector
23% of 39 decks +22% synergy
Emeria Shepherd
23% of 39 decks +22% synergy
Collector Ouphe
23% of 39 decks +22% synergy
Augur of Autumn
23% of 39 decks +21% synergy
Courser of Kruphix
23% of 39 decks +21% synergy
Aven Mindcensor
23% of 39 decks +21% synergy
Oracle of Mul Daya
23% of 39 decks +20% synergy
Elves of Deep Shadow
23% of 39 decks +20% synergy
Solemn Simulacrum
23% of 39 decks +8% synergy
Perennial Behemoth
22% of 36 decks +21% synergy
Orcish Bowmasters
21% of 14 decks +15% synergy
Greensleeves, Maro-Sorcerer
21% of 38 decks +20% synergy
Elas il-Kor, Sadistic Pilgrim
21% of 38 decks +18% synergy
Zulaport Cutthroat
21% of 39 decks +15% synergy
Elesh Norn, Mother of Machines
19% of 36 decks +17% synergy
Yasharn, Implacable Earth
18% of 39 decks +17% synergy
Archon of Emeria
18% of 39 decks +17% synergy
Karmic Guide
18% of 39 decks +15% synergy
Blood Artist
18% of 39 decks +12% synergy
Titania, Voice of Gaea
17% of 36 decks +16% synergy
Saffi Eriksdotter
15% of 39 decks +15% synergy
Linvala, Keeper of Silence
15% of 39 decks +14% synergy
Odric, Lunarch Marshal
15% of 39 decks +14% synergy
World Shaper
15% of 39 decks +14% synergy
Bloom Tender
15% of 39 decks +11% synergy
Viscera Seer
15% of 39 decks +10% synergy
Fyndhorn Elves
15% of 39 decks +8% synergy
Vorinclex
13% of 23 decks +12% synergy
Eidolon of Rhetoric
13% of 39 decks +12% synergy
Instants (21)
Path to Exile
41% of 39 decks +22% synergy
Anguished Unmaking
38% of 39 decks +33% synergy
Vampiric Tutor
38% of 39 decks +29% synergy
Worldly Tutor
36% of 39 decks +29% synergy
Beast Within
36% of 39 decks +17% synergy
Crop Rotation
33% of 39 decks +29% synergy
Teferi's Protection
33% of 39 decks +24% synergy
Heroic Intervention
33% of 39 decks +20% synergy
Abrupt Decay
26% of 39 decks +23% synergy
Enlightened Tutor
26% of 39 decks +17% synergy
Generous Gift
26% of 39 decks +14% synergy
Harrow
23% of 39 decks +18% synergy
Entish Restoration
21% of 14 decks +17% synergy
Eladamri's Call
18% of 39 decks +15% synergy
Surge of Salvation
17% of 23 decks +16% synergy
Roiling Regrowth
15% of 39 decks +14% synergy
Despark
13% of 39 decks +9% synergy
Deadly Rollick
13% of 39 decks +8% synergy
Nature's Claim
13% of 39 decks +7% synergy
Putrefy
10% of 39 decks +7% synergy
Entomb
10% of 39 decks +7% synergy
Sorceries (30)
Demonic Tutor
44% of 39 decks +31% synergy
Splendid Reclamation
38% of 39 decks +37% synergy
Cultivate
38% of 39 decks +16% synergy
Farseek
36% of 39 decks +20% synergy
Eerie Ultimatum
33% of 39 decks +32% synergy
Nature's Lore
31% of 39 decks +16% synergy
Life from the Loam
28% of 39 decks +27% synergy
Chain of Smog
26% of 39 decks +25% synergy
Kodama's Reach
26% of 39 decks +10% synergy
Toxic Deluge
23% of 39 decks +15% synergy
Rampant Growth
23% of 39 decks +7% synergy
Armageddon
21% of 39 decks +20% synergy
Damn
21% of 39 decks +16% synergy
Three Visits
21% of 39 decks +9% synergy
Farewell
18% of 39 decks +12% synergy
Wrath of God
15% of 39 decks +12% synergy
Bala Ged Recovery
15% of 39 decks +11% synergy
Reanimate
15% of 39 decks +8% synergy
Explore
13% of 39 decks +9% synergy
Diabolic Intent
13% of 39 decks +8% synergy
Sylvan Scrying
10% of 39 decks +9% synergy
Imperial Seal
10% of 39 decks +7% synergy
Austere Command
10% of 39 decks +4% synergy
Victimize
10% of 39 decks +4% synergy
Dig Up
8% of 39 decks +7% synergy
Culling Ritual
8% of 39 decks +5% synergy
Torment of Hailfire
8% of 39 decks +5% synergy
Green Sun's Zenith
8% of 39 decks +4% synergy
Damnation
8% of 39 decks +3% synergy
Night's Whisper
8% of 39 decks +3% synergy
Utility Artifacts (11)
Lightning Greaves
36% of 39 decks +10% synergy
Swiftfoot Boots
26% of 39 decks -3% synergy
Altar of Dementia
15% of 39 decks +12% synergy
Skullclamp
13% of 39 decks +0% synergy
Zuran Orb
10% of 39 decks +9% synergy
Expedition Map
10% of 39 decks +7% synergy
Ashnod's Altar
10% of 39 decks +2% synergy
Seer's Sundial
8% of 39 decks +7% synergy
Horn of Greed
8% of 39 decks +7% synergy
Phyrexian Altar
8% of 39 decks +3% synergy
Bolas's Citadel
8% of 39 decks +2% synergy
Enchantments (20)
Smothering Tithe
33% of 39 decks +21% synergy
Retreat to Hagra
28% of 39 decks +27% synergy
Authority of the Consuls
23% of 39 decks +21% synergy
Blind Obedience
23% of 39 decks +20% synergy
Deafening Silence
21% of 39 decks +19% synergy
Druid Class
21% of 39 decks +19% synergy
Sylvan Library
21% of 39 decks +14% synergy
Nature's Revolt
15% of 39 decks +15% synergy
Rule of Law
15% of 39 decks +14% synergy
Retreat to Emeria
13% of 39 decks +12% synergy
Aura of Silence
13% of 39 decks +11% synergy
Land Tax
13% of 39 decks +10% synergy
Skrelv's Hive
11% of 36 decks +9% synergy
Perilous Forays
10% of 39 decks +10% synergy
Zendikar's Roil
10% of 39 decks +9% synergy
Moldervine Reclamation
10% of 39 decks +8% synergy
Journey to Eternity
8% of 39 decks +7% synergy
Bitterblossom
8% of 39 decks +6% synergy
Guardian Project
8% of 39 decks +4% synergy
Ghostly Prison
8% of 39 decks +2% synergy
Battles (1)
Planeswalkers (3)
Wrenn and Realmbreaker
32% of 25 decks +31% synergy
Nissa of Shadowed Boughs
18% of 39 decks +17% synergy
Wrenn and Seven
8% of 39 decks +7% synergy
Utility Lands (25)
Yavimaya, Cradle of Growth
46% of 39 decks +37% synergy
Boseiju, Who Endures
38% of 39 decks +29% synergy
Urborg, Tomb of Yawgmoth
38% of 39 decks +28% synergy
Field of the Dead
36% of 39 decks +32% synergy
Bojuka Bog
36% of 39 decks +20% synergy
Strip Mine
31% of 39 decks +27% synergy
Maze of Ith
23% of 39 decks +20% synergy
Wasteland
21% of 39 decks +19% synergy
Takenuma, Abandoned Mire
21% of 39 decks +14% synergy
Ancient Tomb
21% of 39 decks +10% synergy
Eiganjo, Seat of the Empire
18% of 39 decks +13% synergy
Reliquary Tower
18% of 39 decks -10% synergy
Argoth, Sanctum of Nature
17% of 36 decks +16% synergy
Glacial Chasm
15% of 39 decks +15% synergy
Dakmor Salvage
15% of 39 decks +14% synergy
Urza's Saga
15% of 39 decks +8% synergy
Dark Depths
13% of 39 decks +12% synergy
Lotus Field
13% of 39 decks +11% synergy
Thespian's Stage
13% of 39 decks +10% synergy
Cabal Coffers
13% of 39 decks +7% synergy
Dryad Arbor
10% of 39 decks +8% synergy
Drownyard Temple
8% of 39 decks +7% synergy
Guildless Commons
8% of 39 decks +6% synergy
Phyrexian Tower
8% of 39 decks +3% synergy
Rogue's Passage
8% of 39 decks -11% synergy
Mana Artifacts (10)
Sol Ring
74% of 39 decks -10% synergy
Arcane Signet
59% of 39 decks -12% synergy
Mana Crypt
23% of 39 decks +12% synergy
Fellwar Stone
15% of 39 decks -6% synergy
Chrome Mox
13% of 39 decks +6% synergy
Lotus Petal
10% of 39 decks +4% synergy
Selesnya Signet
8% of 39 decks +6% synergy
Jeweled Lotus
8% of 39 decks +0% synergy
Chromatic Lantern
8% of 39 decks -2% synergy
Mind Stone
8% of 39 decks -11% synergy
Lands (50)
Command Tower
85% of 39 decks +12% synergy
Godless Shrine
64% of 39 decks +55% synergy
Overgrown Tomb
62% of 39 decks +52% synergy
Indatha Triome
59% of 39 decks +55% synergy
Temple Garden
59% of 39 decks +50% synergy
Windswept Heath
46% of 39 decks +36% synergy
Verdant Catacombs
46% of 39 decks +34% synergy
Marsh Flats
46% of 39 decks +34% synergy
Bountiful Promenade
44% of 39 decks +38% synergy
Terramorphic Expanse
38% of 39 decks +22% synergy
Orzhov Basilica
36% of 39 decks +32% synergy
Golgari Rot Farm
36% of 39 decks +32% synergy
Undergrowth Stadium
36% of 39 decks +30% synergy
Vault of Champions
36% of 39 decks +30% synergy
Evolving Wilds
36% of 39 decks +14% synergy
Selesnya Sanctuary
33% of 39 decks +30% synergy
Exotic Orchard
33% of 39 decks -1% synergy
Canopy Vista
28% of 39 decks +21% synergy
Sandsteppe Citadel
26% of 39 decks +23% synergy
Savannah
26% of 39 decks +23% synergy
Bayou
26% of 39 decks +23% synergy
Scrubland
23% of 39 decks +20% synergy
Woodland Cemetery
23% of 39 decks +18% synergy
Fabled Passage
23% of 39 decks +13% synergy
Myriad Landscape
23% of 39 decks +2% synergy
Flagstones of Trokair
21% of 39 decks +20% synergy
Arid Mesa
21% of 39 decks +10% synergy
Isolated Chapel
18% of 39 decks +12% synergy
Deathcap Glade
15% of 39 decks +12% synergy
Overgrown Farmland
15% of 39 decks +12% synergy
Sunpetal Grove
15% of 39 decks +11% synergy
Wooded Foothills
15% of 39 decks +6% synergy
Bloodstained Mire
15% of 39 decks +5% synergy
Polluted Delta
15% of 39 decks +5% synergy
Misty Rainforest
15% of 39 decks +3% synergy
Shattered Sanctum
13% of 39 decks +9% synergy
Llanowar Wastes
13% of 39 decks +8% synergy
Caves of Koilos
13% of 39 decks +7% synergy
Mana Confluence
13% of 39 decks +5% synergy
Flooded Strand
13% of 39 decks +3% synergy
Horizon Canopy
10% of 39 decks +9% synergy
Nurturing Peatland
10% of 39 decks +9% synergy
Obscura Storefront
10% of 39 decks +9% synergy
Gemstone Caverns
10% of 39 decks +5% synergy
Prismatic Vista
10% of 39 decks +4% synergy
City of Brass
10% of 39 decks +2% synergy
Plaza of Heroes
8% of 38 decks +4% synergy
Silent Clearing
8% of 39 decks +7% synergy
Brokers Hideout
8% of 39 decks +6% synergy
Cabaretti Courtyard
8% of 39 decks +6% synergy