edhseer Commander synergy, explained
Sorcery
Mana cost: {2}{B}{B}
As an additional cost to cast this spell, tap an untapped Vampire you control.
Gain control of target creature. Change the text of that creature by replacing all instances of one creature type with Vampire.
on-cast —
Causes: take control of a creature.
Cares about: nothing.
a sorcery is cast — 3,720 cards in the game can cause this (New Blood is one).
When New Blood 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 (New Blood is one).
When New Blood is cast:
5 other cards care about it too. These are the ones with the most connections.