edhseer Oracle-level deck reading

Clarion Ultimatum

Sorcery

Produces: search permanent , a permanent entering the battlefield, a library being shuffled.

Cares about: nothing.

Partners

139 cards can cause a permanent entering the battlefield.

  1. Corruption of Towashi — When a permanent enters thanks to Clarion Ultimatum, Corruption of Towashi makes a player draw 1 card
  2. Dawn-Blessed Pennant — When a permanent enters thanks to Clarion Ultimatum, Dawn-Blessed Pennant gains you 1 life
  3. Threats Around Every Corner — When a permanent enters thanks to Clarion Ultimatum, Threats Around Every Corner searches a library

977 cards can cause a library being searched.

  1. Prishe's Wanderings — When a permanent searches a library thanks to Clarion Ultimatum, Prishe's Wanderings puts counters on a creature

1,974 cards can cause anything that is not a token entering the battlefield.

  1. Canoptek Spyder — When a permanent enters thanks to Clarion Ultimatum, Canoptek Spyder draws you 1 card

5,358 cards can cause anything entering the battlefield.

  1. Wan Shi Tong, Librarian — When Wan Shi Tong, Librarian enters thanks to Clarion Ultimatum, it puts X counters on a permanent
  2. Rosie Cotton of South Lane — When a permanent enters thanks to Clarion Ultimatum, Rosie Cotton of South Lane makes a token
  3. Era of Innovation — When a permanent enters thanks to Clarion Ultimatum, Era of Innovation adds mana

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 →