Emily, Joy Bringer Seraphim

Flying, Soulbond

As long as Emily, Joy Bringer Seraphim is paired
with another creature, each of those creatures has
"When this creature dies, you may return it to the battlefield under its owner's control at the beginning
of your next upkeep."

~Extermination... of human souls! Demon or not,
there is no reason to be doing this!...~