Amoeboid Changeling + Spirit Mirror + Thornbite Staff

Amoeboid Changeling
Spirit Mirror
Thornbite Staff

Requires
Amoeboid Changeling must be on the battlefield. Spirit Mirror must be on the battlefield. Thornbite Staff must be on the battlefield. Thornbite Staff attached to Amoeboid Changeling. Amoeboid Changeling does not have summoning sickness.
Steps
  1. Activate Amoeboid Changeling's first ability by tapping it, causing any creature an opponent controls to gain all creature types until end of turn.
  2. Activate Spirit Mirror by paying 0, destroying the opponent's creature.
  3. The creature dies, triggering Amoeboid Changeling, untapping Amoeboid Changeling.
  4. Repeat.
  5. You may also repeat this loop whenever a creature enters the battlefield under an opponent's control.
Results
Destroy all creatures opponents control. Destroy all creatures that enter the battlefield under an opponent's control.

Sliver Overlord
0.06% of 6355 decks 4 decks
Morophon, the Boundless
0.03% of 9607 decks 3 decks
The Ur-Dragon
0.01% of 25818 decks 2 decks
High Synergy Cards
Cloudshredder Sliver
75% of 12 decks +74% synergy
Manaweft Sliver
73% of 11 decks +72% synergy
Gemhide Sliver
73% of 11 decks +72% synergy
Hatchery Sliver
67% of 6 decks +66% synergy
Realmwalker
55% of 11 decks +52% synergy
Magda, Brazen Outlaw
50% of 12 decks +49% synergy
Kodama's Reach
64% of 11 decks +49% synergy
Farseek
64% of 11 decks +48% synergy
Predatory Sliver
45% of 11 decks +45% synergy
Harmonic Sliver
45% of 11 decks +45% synergy
Top Cards
Counterspell
53% of 15 decks +32% synergy
Masked Vandal
45% of 11 decks +44% synergy
Cultivate
45% of 11 decks +24% synergy
Mirror Entity
40% of 15 decks +38% synergy
Kindred Discovery
40% of 15 decks +36% synergy
Reaper King
36% of 11 decks +36% synergy
The First Sliver
36% of 11 decks +36% synergy
Muscle Sliver
36% of 11 decks +36% synergy
Sliver Legion
36% of 11 decks +36% synergy
Sliver Hivelord
36% of 11 decks +36% synergy
Creatures
Risen Reef
36% of 11 decks +36% synergy
Sinew Sliver
33% of 15 decks +33% synergy
Spiteful Sliver
33% of 12 decks +33% synergy
Necrotic Sliver
33% of 12 decks +33% synergy
Unsettled Mariner
33% of 15 decks +33% synergy
Graveshifter
33% of 12 decks +33% synergy
Taurean Mauler
33% of 12 decks +32% synergy
Changeling Outcast
33% of 12 decks +31% synergy
Rin and Seri, Inseparable
27% of 11 decks +27% synergy
Tempered Sliver
27% of 11 decks +27% synergy
Firewake Sliver
27% of 11 decks +27% synergy
Harabaz Druid
27% of 11 decks +27% synergy
Root Sliver
27% of 11 decks +27% synergy
Quick Sliver
27% of 11 decks +27% synergy
Venom Sliver
27% of 11 decks +27% synergy
Shapesharer
27% of 15 decks +27% synergy
Synapse Sliver
27% of 15 decks +26% synergy
Sentinel Sliver
27% of 15 decks +26% synergy
Universal Automaton
27% of 15 decks +26% synergy
Bloodline Pretender
27% of 15 decks +25% synergy
Skeletal Changeling
25% of 12 decks +25% synergy
Heart Sliver
25% of 12 decks +25% synergy
Diffusion Sliver
20% of 15 decks +20% synergy
Shifting Sliver
20% of 15 decks +20% synergy
Bonescythe Sliver
20% of 15 decks +20% synergy
Crystalline Sliver
20% of 15 decks +20% synergy
Irregular Cohort
20% of 15 decks +20% synergy
Mothdust Changeling
20% of 15 decks +19% synergy
Knight Exemplar
20% of 15 decks +19% synergy
Instants
Enlightened Tutor
33% of 15 decks +25% synergy
Path to Exile
33% of 15 decks +13% synergy
Swords to Plowshares
33% of 15 decks +5% synergy
Heroic Intervention
27% of 11 decks +13% synergy
Teferi's Protection
27% of 15 decks +17% synergy
Vampiric Tutor
25% of 12 decks +15% synergy
Mana Drain
20% of 15 decks +12% synergy
Negate
20% of 15 decks +9% synergy
Sorceries
Blasphemous Act
33% of 12 decks +17% synergy
Nature's Lore
27% of 11 decks +12% synergy
Whelming Wave
27% of 15 decks +26% synergy
Distant Melody
27% of 15 decks +24% synergy
Kindred Dominance
25% of 12 decks +23% synergy
Demonic Tutor
25% of 12 decks +13% synergy
Utility Artifacts
Maskwood Nexus
33% of 15 decks +30% synergy
Birthing Boughs
27% of 15 decks +26% synergy
Vanquisher's Banner
20% of 15 decks +16% synergy
Herald's Horn
20% of 15 decks +14% synergy
Enchantments
Black Market Connections
36% of 11 decks +31% synergy
Reflections of Littjara
33% of 15 decks +31% synergy
Arcane Adaptation
27% of 15 decks +26% synergy
Liliana's Contract
25% of 12 decks +24% synergy
Rhystic Study
20% of 15 decks +6% synergy
Utility Lands
Reliquary Tower
33% of 15 decks +4% synergy
Swarmyard
27% of 15 decks +25% synergy
Yavimaya, Cradle of Growth
20% of 15 decks +11% synergy
Mana Artifacts
Sol Ring
100% of 15 decks +16% synergy
Arcane Signet
93% of 15 decks +22% synergy
Chromatic Lantern
53% of 15 decks +44% synergy
Azorius Signet
20% of 15 decks +14% synergy
Mana Crypt
20% of 15 decks +9% synergy
Commander's Sphere
20% of 15 decks +4% synergy
Lands
Command Tower
93% of 15 decks +20% synergy
Path of Ancestry
60% of 15 decks +39% synergy
Exotic Orchard
47% of 15 decks +11% synergy
The World Tree
45% of 11 decks +43% synergy
Secluded Courtyard
36% of 14 decks +31% synergy
Spectator Seating
33% of 12 decks +28% synergy
Sea of Clouds
33% of 15 decks +28% synergy
Training Center
33% of 12 decks +27% synergy
Prairie Stream
33% of 15 decks +26% synergy
Evolving Wilds
33% of 15 decks +12% synergy
Indatha Triome
27% of 11 decks +24% synergy
Zagoth Triome
27% of 11 decks +24% synergy
Ketria Triome
27% of 11 decks +24% synergy
Bountiful Promenade
27% of 11 decks +22% synergy
Spire Garden
27% of 11 decks +22% synergy
Undergrowth Stadium
27% of 11 decks +22% synergy
Luxury Suite
27% of 11 decks +21% synergy
Rejuvenating Springs
27% of 11 decks +21% synergy
Temple Garden
27% of 11 decks +18% synergy
Breeding Pool
27% of 11 decks +18% synergy
Overgrown Tomb
27% of 11 decks +18% synergy
Unclaimed Territory
27% of 15 decks +22% synergy
Reflecting Pool
27% of 15 decks +21% synergy
Cavern of Souls
27% of 15 decks +20% synergy
Hallowed Fountain
27% of 15 decks +18% synergy
Flooded Strand
27% of 15 decks +16% synergy
Polluted Delta
27% of 15 decks +16% synergy
Terramorphic Expanse
27% of 15 decks +11% synergy
Scrubland
25% of 12 decks +22% synergy
Underground Sea
25% of 12 decks +21% synergy
Vault of Champions
25% of 12 decks +19% synergy
Morphic Pool
25% of 12 decks +18% synergy
Deserted Beach
21% of 14 decks +18% synergy
Sliver Hive
20% of 15 decks +20% synergy
Nimbus Maze
20% of 15 decks +19% synergy
Haven of the Spirit Dragon
20% of 15 decks +19% synergy
Tundra
20% of 15 decks +17% synergy
Glacial Fortress
20% of 15 decks +15% synergy
Fabled Passage
20% of 15 decks +11% synergy
Arid Mesa
20% of 15 decks +9% synergy
Marsh Flats
20% of 15 decks +9% synergy