Enduring Scalelord
Undercover Operative
Cathars' Crusade

   Prerequisites

What do I need to start this combo?
Undercover Operative in hand.
Enduring Scalelord and Cathars' Crusade on the battlefield.
2 available

   Steps

How does this combo work?
1
Cast Undercover Operative by paying 2, choosing to have it enter the battlefield as a copy of Enduring Scalelord.
2
Undercover Operative enters the battlefield, triggering Cathars' Crusade, putting a +1/+1 counter on each creature you control.
3
Enduring Scalelord and Undercover Operative triggers.
4
Resolve the Undercover Operative trigger, putting a +1/+1 counter on itself.
5
Enduring Scalelord triggers, putting a +1/+1 counter on itself.
6
Repeat from step 4.

   Results

What do I get from this combo?
Infinite +1/+1 counters on certain creatures
Falco Spara, Pactweaver
0.1%inclusion3 decks4.51K decks
Helga, Skittish Seer
0.0%inclusion2 decks16K decks
Atraxa, Praetors' Voice
0.0%inclusion1 decks39.2K decks
High Synergy Cards
Forgotten Ancient
100%inclusion6 decks6 decks
94%synergy
Vorel of the Hull Clade
83%inclusion5 decks6 decks
81%synergy
Altered Ego
67%inclusion4 decks6 decks
65%synergy
Abzan Falconer
67%inclusion4 decks6 decks
64%synergy
Thrummingbird
67%inclusion4 decks6 decks
63%synergy
Swiftfoot Boots
83%inclusion5 decks6 decks
56%synergy
Game Changers
Cyclonic Rift
17%inclusion1 decks6 decks
-6%synergy
Creatures
Vulturous Zombie
100%inclusion1 decks1 decks
100%synergy
Reyhan, Last of the Abzan
100%inclusion1 decks1 decks
99%synergy
Raffine, Scheming Seer
100%inclusion1 decks1 decks
98%synergy
Corpsejack Menace
100%inclusion1 decks1 decks
95%synergy
Muldrotha, the Gravetide
100%inclusion1 decks1 decks
90%synergy
Elite Scaleguard
50%inclusion3 decks6 decks
50%synergy
Tuskguard Captain
50%inclusion3 decks6 decks
49%synergy
Scavenging Ooze
50%inclusion3 decks6 decks
48%synergy
Master Biomancer
50%inclusion3 decks6 decks
47%synergy
Herald of Secret Streams
50%inclusion3 decks6 decks
47%synergy
Kalonian Hydra
50%inclusion3 decks6 decks
47%synergy
Managorger Hydra
50%inclusion3 decks6 decks
46%synergy
Rishkar, Peema Renegade
50%inclusion3 decks6 decks
46%synergy
Zimone, Paradox Sculptor
40%inclusion2 decks5 decks
38%synergy
Koma, World-Eater
40%inclusion2 decks5 decks
36%synergy
Crowned Ceratok
33%inclusion2 decks6 decks
33%synergy
Bloom Hulk
33%inclusion2 decks6 decks
33%synergy
Cragplate Baloth
33%inclusion2 decks6 decks
33%synergy
Longshot Squad
33%inclusion2 decks6 decks
33%synergy
Gargoyle Flock
33%inclusion2 decks6 decks
33%synergy
Cloudfin Raptor
33%inclusion2 decks6 decks
33%synergy
Temperamental Oozewagg
33%inclusion2 decks6 decks
33%synergy
Experiment One
33%inclusion2 decks6 decks
33%synergy
Sage of Hours
33%inclusion2 decks6 decks
33%synergy
Undergrowth Champion
33%inclusion2 decks6 decks
33%synergy
Spearbreaker Behemoth
33%inclusion2 decks6 decks
33%synergy
Tervigon
33%inclusion2 decks6 decks
33%synergy
Tyrant Guard
33%inclusion2 decks6 decks
33%synergy
Ainok Bond-Kin
33%inclusion2 decks6 decks
33%synergy
Slippery Bogbonder
33%inclusion2 decks6 decks
32%synergy
Tainted Observer
33%inclusion2 decks6 decks
32%synergy
Armorcraft Judge
33%inclusion2 decks6 decks
32%synergy
Botanical Brawler
33%inclusion2 decks6 decks
32%synergy
Basking Broodscale
33%inclusion2 decks6 decks
32%synergy
Garruk's Packleader
33%inclusion2 decks6 decks
32%synergy
Rashmi, Eternities Crafter
33%inclusion2 decks6 decks
31%synergy
Sunscorch Regent
33%inclusion2 decks6 decks
31%synergy
Moonshaker Cavalry
33%inclusion2 decks6 decks
31%synergy
Imoti, Celebrant of Bounty
33%inclusion2 decks6 decks
31%synergy
Bane of Progress
33%inclusion2 decks6 decks
31%synergy
Sovereign Okinec Ahau
33%inclusion2 decks6 decks
31%synergy
Psychosis Crawler
33%inclusion2 decks6 decks
31%synergy
Murkfiend Liege
33%inclusion2 decks6 decks
30%synergy
Evolution Witness
33%inclusion2 decks6 decks
30%synergy
Conclave Mentor
33%inclusion2 decks6 decks
30%synergy
Fathom Mage
33%inclusion2 decks6 decks
29%synergy
Champion of Lambholt
33%inclusion2 decks6 decks
28%synergy
Mother of Runes
33%inclusion2 decks6 decks
28%synergy
Evolution Sage
33%inclusion2 decks6 decks
27%synergy
Beast Whisperer
33%inclusion2 decks6 decks
23%synergy
Instants
Void Rend
100%inclusion1 decks1 decks
85%synergy
Putrefy
100%inclusion1 decks1 decks
84%synergy
Assassin's Trophy
100%inclusion1 decks1 decks
69%synergy
Heroic Intervention
50%inclusion3 decks6 decks
20%synergy
Counterspell
50%inclusion3 decks6 decks
8%synergy
Hindervines
33%inclusion2 decks6 decks
33%synergy
Twiddle
33%inclusion2 decks6 decks
33%synergy
Bioshift
33%inclusion2 decks6 decks
33%synergy
Solidarity of Heroes
33%inclusion2 decks6 decks
33%synergy
Vitalize
33%inclusion2 decks6 decks
32%synergy
Displace
33%inclusion2 decks6 decks
32%synergy
Inscription of Abundance
33%inclusion2 decks6 decks
32%synergy
Dispel
33%inclusion2 decks6 decks
30%synergy
Snakeskin Veil
33%inclusion2 decks6 decks
28%synergy
Inspiring Call
33%inclusion2 decks6 decks
25%synergy
Brainstorm
33%inclusion2 decks6 decks
15%synergy
Negate
33%inclusion2 decks6 decks
12%synergy
Beast Within
33%inclusion2 decks6 decks
-1%synergy
Path to Exile
33%inclusion2 decks6 decks
-14%synergy
Swords to Plowshares
33%inclusion2 decks6 decks
-28%synergy
Haze of Pollen
17%inclusion1 decks6 decks
17%synergy
Ojutai's Command
17%inclusion1 decks6 decks
16%synergy
Contractual Safeguard
17%inclusion1 decks6 decks
16%synergy
Change of Plans
17%inclusion1 decks6 decks
16%synergy
Brokers Confluence
17%inclusion1 decks6 decks
15%synergy
Galadriel's Dismissal
17%inclusion1 decks6 decks
15%synergy
Experimental Augury
17%inclusion1 decks6 decks
14%synergy
Ram Through
17%inclusion1 decks6 decks
14%synergy
Growth Spiral
17%inclusion1 decks6 decks
-4%synergy
Arcane Denial
17%inclusion1 decks6 decks
-4%synergy
Sorceries
Rampant Growth
50%inclusion3 decks6 decks
17%synergy
Enter the Enigma
40%inclusion2 decks5 decks
37%synergy
Reviving Melody
33%inclusion2 decks6 decks
33%synergy
Map the Wastes
33%inclusion2 decks6 decks
33%synergy
Void Snare
33%inclusion2 decks6 decks
33%synergy
End Hostilities
33%inclusion2 decks6 decks
33%synergy
Saheeli's Artistry
33%inclusion2 decks6 decks
33%synergy
Divination
33%inclusion2 decks6 decks
33%synergy
Akroma's Vengeance
33%inclusion2 decks6 decks
33%synergy
Hidden Strings
33%inclusion2 decks6 decks
33%synergy
Mind's Desire
33%inclusion2 decks6 decks
32%synergy
Titania's Command
33%inclusion2 decks6 decks
32%synergy
Collective Effort
33%inclusion2 decks6 decks
32%synergy
Circuitous Route
33%inclusion2 decks6 decks
31%synergy
Cleansing Nova
33%inclusion2 decks6 decks
31%synergy
Overwhelming Stampede
33%inclusion2 decks6 decks
28%synergy
Kodama's Reach
33%inclusion2 decks6 decks
6%synergy
Farseek
33%inclusion2 decks6 decks
-3%synergy
Storm the Seedcore
17%inclusion1 decks6 decks
16%synergy
Praetor's Counsel
17%inclusion1 decks6 decks
16%synergy
Nissa's Pilgrimage
17%inclusion1 decks6 decks
16%synergy
Wave Goodbye
17%inclusion1 decks6 decks
15%synergy
Unnatural Restoration
17%inclusion1 decks6 decks
14%synergy
Tezzeret's Gambit
17%inclusion1 decks6 decks
13%synergy
Bridgeworks Battle
17%inclusion1 decks6 decks
13%synergy
Eldritch Evolution
17%inclusion1 decks6 decks
12%synergy
Wrath of God
17%inclusion1 decks6 decks
12%synergy
Harmonize
17%inclusion1 decks6 decks
9%synergy
Supreme Verdict
17%inclusion1 decks6 decks
4%synergy
Cultivate
17%inclusion1 decks6 decks
-26%synergy
Utility Artifacts
Excalibur II
40%inclusion2 decks5 decks
40%synergy
Mace of the Valiant
33%inclusion2 decks6 decks
33%synergy
Ozolith, the Shattered Spire
33%inclusion2 decks6 decks
29%synergy
Agent's Toolkit
17%inclusion1 decks6 decks
16%synergy
The Ozolith
17%inclusion1 decks6 decks
13%synergy
Sensei's Divining Top
17%inclusion1 decks6 decks
12%synergy
Bident of Thassa
17%inclusion1 decks6 decks
11%synergy
The Great Henge
17%inclusion1 decks6 decks
7%synergy
Lightning Greaves
17%inclusion1 decks6 decks
-8%synergy
Enchantments
Retribution of the Ancients
100%inclusion1 decks1 decks
100%synergy
The Cruelty of Gix
100%inclusion1 decks1 decks
99%synergy
Citadel Siege
50%inclusion3 decks6 decks
49%synergy
Terrasymbiosis
40%inclusion2 decks5 decks
35%synergy
Gleam of Authority
33%inclusion2 decks6 decks
33%synergy
Stasis Field
33%inclusion2 decks6 decks
33%synergy
Raised by Giants
33%inclusion2 decks6 decks
33%synergy
Instill Energy
33%inclusion2 decks6 decks
33%synergy
Ossification
33%inclusion2 decks6 decks
32%synergy
Abundant Growth
33%inclusion2 decks6 decks
32%synergy
Retreat to Kazandu
33%inclusion2 decks6 decks
32%synergy
Elven Chorus
33%inclusion2 decks6 decks
31%synergy
Darksteel Mutation
33%inclusion2 decks6 decks
28%synergy
Wild Growth
33%inclusion2 decks6 decks
23%synergy
Garruk's Uprising
33%inclusion2 decks6 decks
16%synergy
Swift Reconfiguration
17%inclusion1 decks6 decks
16%synergy
Lion Umbra
17%inclusion1 decks6 decks
16%synergy
Hadana's Climb
17%inclusion1 decks6 decks
15%synergy
Virtue of Loyalty
17%inclusion1 decks6 decks
15%synergy
Court of Garenbrig
17%inclusion1 decks6 decks
15%synergy
As Foretold
17%inclusion1 decks6 decks
15%synergy
Inexorable Tide
17%inclusion1 decks6 decks
14%synergy
Brokers Ascendancy
17%inclusion1 decks6 decks
11%synergy
Simic Ascendancy
17%inclusion1 decks6 decks
11%synergy
Felidar Retreat
17%inclusion1 decks6 decks
11%synergy
Hardened Scales
17%inclusion1 decks6 decks
7%synergy
Battles
Invasion of Moag
33%inclusion2 decks6 decks
33%synergy
Planeswalkers
Ajani, Valiant Protector
33%inclusion2 decks6 decks
33%synergy
Ajani Steadfast
33%inclusion2 decks6 decks
33%synergy
Ajani, the Greathearted
33%inclusion2 decks6 decks
31%synergy
Elspeth Resplendent
17%inclusion1 decks6 decks
16%synergy
Tamiyo, Compleated Sage
17%inclusion1 decks6 decks
16%synergy
Nissa, Voice of Zendikar
17%inclusion1 decks6 decks
16%synergy
Ajani, Sleeper Agent
17%inclusion1 decks6 decks
16%synergy
Utility Lands
Dreadship Reef
100%inclusion1 decks1 decks
99%synergy
Reliquary Tower
50%inclusion3 decks6 decks
20%synergy
Novijen, Heart of Progress
33%inclusion2 decks6 decks
32%synergy
Llanowar Reborn
33%inclusion2 decks6 decks
32%synergy
Oran-Rief, the Vastwood
33%inclusion2 decks6 decks
29%synergy
Karn's Bastion
33%inclusion2 decks6 decks
29%synergy
Mosswort Bridge
33%inclusion2 decks6 decks
23%synergy
Abandoned Air Temple
25%inclusion1 decks4 decks
20%synergy
Inkmoth Nexus
17%inclusion1 decks6 decks
16%synergy
Gavony Township
17%inclusion1 decks6 decks
9%synergy
Rogue's Passage
17%inclusion1 decks6 decks
-4%synergy
Mana Artifacts
Golgari Signet
100%inclusion1 decks1 decks
90%synergy
Orzhov Signet
100%inclusion1 decks1 decks
77%synergy
Sol Ring
83%inclusion5 decks6 decks
0%synergy
Commander's Sphere
67%inclusion4 decks6 decks
55%synergy
Replicating Ring
50%inclusion3 decks6 decks
49%synergy
Chromatic Lantern
33%inclusion2 decks6 decks
25%synergy
Mind Stone
33%inclusion2 decks6 decks
19%synergy
Fellwar Stone
33%inclusion2 decks6 decks
13%synergy
Arcane Signet
33%inclusion2 decks6 decks
-39%synergy
Astral Cornucopia
17%inclusion1 decks6 decks
16%synergy
Staff of Compleation
17%inclusion1 decks6 decks
15%synergy
Everflowing Chalice
17%inclusion1 decks6 decks
12%synergy
Simic Signet
17%inclusion1 decks6 decks
6%synergy
Lands
Golgari Rot Farm
100%inclusion1 decks1 decks
83%synergy
Underground River
100%inclusion1 decks1 decks
77%synergy
Sandsteppe Citadel
100%inclusion1 decks1 decks
74%synergy
Arcane Sanctum
100%inclusion1 decks1 decks
72%synergy
Opulent Palace
100%inclusion1 decks1 decks
72%synergy
Drowned Catacomb
100%inclusion1 decks1 decks
71%synergy
Prairie Stream
100%inclusion6 decks6 decks
67%synergy
Isolated Chapel
100%inclusion1 decks1 decks
66%synergy
Exotic Orchard
100%inclusion6 decks6 decks
63%synergy
Overgrown Tomb
100%inclusion1 decks1 decks
59%synergy
Watery Grave
100%inclusion1 decks1 decks
58%synergy
Command Tower
100%inclusion6 decks6 decks
26%synergy
Evolving Wilds
83%inclusion5 decks6 decks
63%synergy
Canopy Vista
83%inclusion5 decks6 decks
47%synergy
Azorius Chancery
67%inclusion4 decks6 decks
54%synergy
Temple of Plenty
67%inclusion4 decks6 decks
54%synergy
Temple of Mystery
67%inclusion4 decks6 decks
50%synergy
Thornwood Falls
50%inclusion3 decks6 decks
43%synergy
Port Town
50%inclusion3 decks6 decks
35%synergy
Terramorphic Expanse
50%inclusion3 decks6 decks
35%synergy
Fortified Village
50%inclusion3 decks6 decks
34%synergy
Sejiri Refuge
33%inclusion2 decks6 decks
32%synergy
Graypelt Refuge
33%inclusion2 decks6 decks
30%synergy
Fabled Passage
33%inclusion2 decks6 decks
24%synergy
Vineglimmer Snarl
33%inclusion2 decks6 decks
23%synergy
Misty Rainforest
33%inclusion2 decks6 decks
22%synergy
Selesnya Sanctuary
33%inclusion2 decks6 decks
21%synergy
Sungrass Prairie
33%inclusion2 decks6 decks
20%synergy
Myriad Landscape
33%inclusion2 decks6 decks
18%synergy
Temple of Enlightenment
33%inclusion2 decks6 decks
17%synergy
Path of Ancestry
33%inclusion2 decks6 decks
11%synergy
Hinterland Harbor
33%inclusion2 decks6 decks
0%synergy
Temple Garden
33%inclusion2 decks6 decks
-6%synergy
Breeding Pool
33%inclusion2 decks6 decks
-9%synergy
Glacial Floodplain
17%inclusion1 decks6 decks
15%synergy
Tanglepool Bridge
17%inclusion1 decks6 decks
14%synergy
Azorius Guildgate
17%inclusion1 decks6 decks
13%synergy
Botanical Sanctum
17%inclusion1 decks6 decks
12%synergy
Simic Guildgate
17%inclusion1 decks6 decks
11%synergy
Hengegate Pathway
17%inclusion1 decks6 decks
11%synergy
Tranquil Cove
17%inclusion1 decks6 decks
10%synergy
Barkchannel Pathway
17%inclusion1 decks6 decks
10%synergy
Branchloft Pathway
17%inclusion1 decks6 decks
10%synergy
Blossoming Sands
17%inclusion1 decks6 decks
10%synergy
Windswept Heath
17%inclusion1 decks6 decks
6%synergy
Deserted Beach
17%inclusion1 decks6 decks
0%synergy
Overgrown Farmland
17%inclusion1 decks6 decks
-1%synergy
Dreamroot Cascade
17%inclusion1 decks6 decks
-5%synergy
Bountiful Promenade
17%inclusion1 decks6 decks
-5%synergy
Sea of Clouds
17%inclusion1 decks6 decks
-8%synergy