edhseer Commander synergy, explained
Instant — Arcane
Mana cost: {1}{B}
Return target legendary creature card from your graveyard to the battlefield. That creature gains haste. Exile it at the beginning of the next end step.
on-cast — brings a card back
on-cast — grants haste
Splice onto Arcane {2}{B}
Causes: put a creature onto the battlefield, a creature leaves a graveyard.
Cares about: a creature in a graveyard.
an Arcane instant it makes cheaper to cast — 68 cards in the game can cause this.
67 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 (Goryo's Vengeance is one).
When a creature leaves a graveyard thanks to Goryo's Vengeance:
3 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 (Goryo's Vengeance is one).
When a creature leaves a graveyard thanks to Goryo's Vengeance:
13 other cards care about it too. These are the ones with the most connections.
an instant is cast — 3,931 cards in the game can cause this (Goryo's Vengeance is one).
When Goryo's Vengeance is cast:
427 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 (Goryo's Vengeance is one).
When a creature enters thanks to Goryo's Vengeance:
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 (Goryo's Vengeance is one).
When a creature enters thanks to Goryo's Vengeance:
298 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 (Goryo's Vengeance is one).
21 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 (Goryo's Vengeance is one).
When Goryo's Vengeance is cast:
5 other cards care about it too. These are the ones with the most connections.