edhseer Commander synergy, explained
Sorcery
Mana cost: {3}{C}{C}
Each player chooses a color. Then exile each permanent unless it's colorless or it's only the color its controller chose.
on-cast —
Causes: exile a permanent, a permanent leaves the battlefield.
Cares about: nothing.
anything leaves the battlefield — 1 card in the game can cause this (Selective Obliteration is one).
a permanent is exiled — 69 cards in the game can cause this (Selective Obliteration is one).
a nontoken permanent leaves the battlefield — 313 cards in the game can cause this (Selective Obliteration is one).
a permanent leaves the battlefield — 315 cards in the game can cause this (Selective Obliteration is one).
When a permanent leaves the battlefield thanks to Selective Obliteration:
anything is exiled — 2,497 cards in the game can cause this (Selective Obliteration is one).
a sorcery is cast — 3,720 cards in the game can cause this (Selective Obliteration is one).
When Selective Obliteration is cast:
424 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 (Selective Obliteration is one).
When Selective Obliteration is cast:
5 other cards care about it too. These are the ones with the most connections.