edhseer Commander synergy, explained
Artifact
Mana cost: {3}
As this artifact enters, choose a creature type.
Add one mana of any color.
activated {T} — adds 1 mana
The next spell of the chosen type you cast this turn can be cast as though it had flash.
activated {T} — grants a keyword
Causes: nothing.
Cares about: nothing.
an artifact is cast — 3,683 cards in the game can cause this (Progenitor's Icon is one).
When Progenitor's Icon is cast:
271 other cards care about it too. These are the ones with the most connections.
a nontoken artifact enters the battlefield — 3,768 cards in the game can cause this (Progenitor's Icon is one).
When Progenitor's Icon enters:
an artifact enters the battlefield — 4,643 cards in the game can cause this (Progenitor's Icon is one).
When Progenitor's Icon enters:
55 other cards care about it too. These are the ones with the most connections.
anything enters the battlefield — 26,499 cards in the game can cause this (Progenitor's Icon is one).
When Progenitor's Icon enters:
39 other cards care about it too. These are the ones with the most connections.
anything is cast — 31,128 cards in the game can cause this (Progenitor's Icon is one).
When Progenitor's Icon is cast:
10 other cards care about it too. These are the ones with the most connections.