edhseer Commander synergy, explained
Land
This land enters tapped.
At the beginning of your upkeep, if you control seven or more Plains, you may return target creature card from your graveyard to the battlefield.
triggered — brings a card back
Add {W}.
activated {T} — adds 1 mana
Causes: put a creature onto the battlefield, a creature leaves a graveyard.
Cares about: an upkeep, a creature in a graveyard.
a land it grants abilities to — 1,237 cards in the game can cause this.
1,233 other cards cause it too. These are the ones with the most connections.
a creature leaves a graveyard — 1,302 cards in the game can cause this (Emeria is one).
When a creature leaves a graveyard thanks to Emeria, the Sky Ruin:
3 other cards care about it too. These are the ones with the most connections.
a land enters the battlefield — 1,560 cards in the game can cause this (Emeria is one).
When Emeria, the Sky Ruin enters:
199 other cards care about it too. These are the ones with the most connections.
anything leaves a graveyard — 2,503 cards in the game can cause this (Emeria is one).
When a creature leaves a graveyard thanks to Emeria, the Sky Ruin:
13 other cards care about it too. These are the ones with the most connections.
a creature in a graveyard — 2,769 cards in the game can cause this (Emeria is one).
2,760 other cards care about it too. These are the ones with the most connections.
a nontoken creature enters the battlefield — 18,448 cards in the game can cause this (Emeria is one).
When a creature enters thanks to Emeria, the Sky Ruin:
23 other cards care about it too. These are the ones with the most connections.
a creature enters the battlefield — 19,800 cards in the game can cause this (Emeria is one).
286 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 (Emeria is one).
19 other cards care about it too. These are the ones with the most connections.