edhseer Oracle-level deck reading

Arbor Colossus

Creature — Giant

Produces: a creature getting a counter, a creature dying.

Cares about: nothing.

Partners

97 cards can cause a creature getting a counter.

  1. Benevolent Hydra — When Arbor Colossus gets a counter, Benevolent Hydra puts counters on something
  2. Stocking the Pantry — When Arbor Colossus gets a counter, Stocking the Pantry puts a counter on a permanent
  3. Shang-Chi, Martial Mentor — When Arbor Colossus gets a counter, Shang-Chi, Martial Mentor puts twice that many counters on something

102 cards can cause an artifact or creature getting a counter.

  1. Ozolith, the Shattered Spire — When Arbor Colossus gets a counter, Ozolith, the Shattered Spire puts that many plus one counters on something

2,353 cards can cause a nontoken creature dying.

  1. Ogre Slumlord — When a creature dies thanks to Arbor Colossus, Ogre Slumlord makes a token
  2. High-Society Hunter — When a creature dies thanks to Arbor Colossus, High-Society Hunter draws you 1 card
  3. Bridge from Below — When a creature dies thanks to Arbor Colossus, Bridge from Below triggers

2,371 cards can cause a creature dying.

  1. End-Blaze Epiphany — When a creature dies thanks to Arbor Colossus, End-Blaze Epiphany triggers
  2. Blood Cultist — When a creature dies thanks to Arbor Colossus, Blood Cultist puts counters on a permanent
  3. Endless Evil — When a creature dies thanks to Arbor Colossus, Endless Evil brings a card back

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 Boss produces
enters · creature · token
Impact Tremors cares about

Edge. When a creature enters thanks to Krenko, Mob Boss, Impact Tremors deals 1 damage.

Farseek produces
enters · land
Enduring Courage cares 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.

Read how the engine decides →