Produces: a creature leaving the battlefield, a creature entering the battlefield, a creature being sacrificed, a creature dying, anything entering the battlefield.
Cares about: an end step.
Partners
855 cards can cause a nontoken creature entering the battlefield.
Dual Nature — When Shifty Doppelganger enters, Dual Nature makes a token
Minion Reflector — When Shifty Doppelganger enters, Minion Reflector makes a token
Metastatic Evangel — When Shifty Doppelganger enters, Metastatic Evangel proliferates
1,443 cards can cause a nontoken creature being sacrificed.
Fumulus, the Infestation — When Shifty Doppelganger sacrifices something, Fumulus, the Infestation makes a token
1,459 cards can cause a creature being sacrificed.
Unscrupulous Contractor — When Shifty Doppelganger sacrifices something, Unscrupulous Contractor makes a player draw 2 cards
Kingpin, Wilson Fisk — When Shifty Doppelganger sacrifices something, Kingpin, Wilson Fisk makes 2 tokens
Grist, the Hunger Tide — When Shifty Doppelganger sacrifices something, Grist, the Hunger Tide triggers
1,856 cards can cause an nontoken artifact or creature being sacrificed.
Bag of Devouring — When Shifty Doppelganger sacrifices something, Bag of Devouring triggers
1,885 cards can cause an artifact or creature being sacrificed.
Ravenous Squirrel — When Shifty Doppelganger sacrifices something, Ravenous Squirrel puts a counter on a permanent
Lightless Evangel — When Shifty Doppelganger sacrifices something, Lightless Evangel puts counters on a permanent
2,056 cards can cause an artifact, battle, creature, enchantment or planeswalker being sacrificed.
Felothar, Dawn of the Abzan — When Shifty Doppelganger sacrifices something, Felothar, Dawn of the Abzan puts counters on a permanent
2,353 cards can cause a nontoken creature dying.
Remembrance — When Shifty Doppelganger dies, Remembrance searches a library
Gnawing Crescendo — When Shifty Doppelganger dies, Gnawing Crescendo makes a token
Ogre Slumlord — When Shifty Doppelganger dies, Ogre Slumlord makes a token
2,371 cards can cause a creature dying.
Willow Geist — When Willow Geist dies thanks to Shifty Doppelganger, it gains you life
Pelt Collector — When Shifty Doppelganger dies, Pelt Collector puts counters on a permanent
Boss's Chauffeur — When Boss's Chauffeur dies thanks to Shifty Doppelganger, it makes a token
3,442 cards can cause a creature entering the battlefield.
Rayblade Trooper — When Rayblade Trooper enters thanks to Shifty Doppelganger, it puts counters on a permanent
Overseer of the Damned — When Overseer of the Damned enters thanks to Shifty Doppelganger, it triggers
5,358 cards can cause anything entering the battlefield.
Malik, Grim Manipulator — When Malik, Grim Manipulator enters thanks to Shifty Doppelganger, it triggers
Legate Lanius, Caesar's Ace — When Legate Lanius, Caesar's Ace enters thanks to Shifty Doppelganger, it triggers
Alharu, Solemn Ritualist — When Alharu, Solemn Ritualist enters thanks to Shifty Doppelganger, it puts counters on a permanent
EDH Seer reads the oracle text of every card in a Commander decklist and reports which pairs
actually work together, with the reason printed next to each one.
34,433
cards in the corpus, 21,317 of them read in full
~495
synergy edges in an average Commander deck
0
model calls when you analyse a deck
What an edge is, and what it is not
Krenko, Mob Bossproduces
enters · creature · token
Impact Tremorscares about
Edge. When a creature enters thanks to Krenko, Mob Boss, Impact Tremors deals 1 damage.
Farseekproduces
enters · land
Enduring Couragecares about
No edge. It wants a creature entering, and a fetched land is not one.
What it refuses to claim
Ramp, removal and card draw are roles, not synergies — they make a deck work
without pairing with anything, so they are counted as slots rather than drawn as edges. A
card that refers to itself ("this creature", "this spell") is read as itself and not as a
class. Where the rules cannot say something, the report says nothing: a missing claim is
better than a confident wrong one.