edhseer Commander synergy, explained
Artifact
Mana cost: {5}
This artifact enters tapped.
Add X mana in any combination of colors, where X is the number of basic land types among lands you control.
activated {T} — adds x mana
Causes: nothing.
Cares about: nothing.
an artifact is cast — 3,683 cards in the game can cause this (Prismatic Geoscope is one).
When Prismatic Geoscope 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 (Prismatic Geoscope is one).
When Prismatic Geoscope enters:
an artifact enters the battlefield — 4,643 cards in the game can cause this (Prismatic Geoscope is one).
When Prismatic Geoscope 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 (Prismatic Geoscope is one).
When Prismatic Geoscope enters:
38 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 (Prismatic Geoscope is one).
When Prismatic Geoscope is cast:
10 other cards care about it too. These are the ones with the most connections.