The Horseman With No Head

Malevolent Soulbond (You may pair this creature
with target oppenet's unpaired creature when this
creature enters the battlefield. They remain paired for
as long as both are on the battlefield.)
As long as The Horseman With No Head is
paired with another creature, it gets +3/+0 and
has menace and each of those creatures gain horsemanship.
"We thought it a local tale... a superstition."