edhseer Commander synergy, explained
World Enchantment
Mana cost: {3}{W}
As this enchantment enters, you and an opponent each choose a card name other than a basic land card name.
Spells with the chosen names can't be cast and lands with the chosen names can't be played.
Causes: nothing.
Cares about: nothing.
an enchantment is cast — 3,673 cards in the game can cause this (Null Chamber is one).
When Null Chamber is cast:
255 other cards care about it too. These are the ones with the most connections.
a nontoken enchantment enters the battlefield — 3,691 cards in the game can cause this (Null Chamber is one).
an enchantment enters the battlefield — 3,743 cards in the game can cause this (Null Chamber is one).
When Null Chamber enters:
58 other cards care about it too. These are the ones with the most connections.