edhseer Commander synergy, explained
Land — Cave
This land enters tapped. As it enters, choose a color.
Add one mana of the chosen color.
activated {T} — adds 1 mana
Add two mana of the chosen color. Spend this mana only to activate abilities of land sources.
activated {T} — adds 2 mana
Causes: nothing.
Cares about: nothing.
a Cave enters the battlefield — 18 cards in the game can cause this (Sunken Citadel is one).
a Cave it grants abilities to — 21 cards in the game can cause this.
20 other cards cause it too. These are the ones with the most connections.
a land enters the battlefield — 1,560 cards in the game can cause this (Sunken Citadel is one).
When Sunken Citadel enters:
199 other cards care about it too. These are the ones with the most connections.