edhseer Commander synergy, explained
Artifact
Mana cost: {2}
As this artifact enters, choose a creature type.
Until end of turn, this artifact becomes a copy of target creature you control of the chosen type, except it's an artifact in addition to its other types.
activated {1} — copies a permanent
Causes: copy a creature.
Cares about: nothing.
an artifact is cast — 3,683 cards in the game can cause this (Mirror of the Forebears is one).
When Mirror of the Forebears 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 (Mirror of the Forebears is one).
When Mirror of the Forebears enters:
an artifact enters the battlefield — 4,643 cards in the game can cause this (Mirror of the Forebears is one).
When Mirror of the Forebears 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 (Mirror of the Forebears is one).
When Mirror of the Forebears 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 (Mirror of the Forebears is one).
When Mirror of the Forebears is cast:
10 other cards care about it too. These are the ones with the most connections.