Hierophant Green

Reach, Soulbond (You may pair this creature
with another unpaired creature when either
enters the battlefield. They remain paired for as
long as you control both of them.)
{3}{g},{t}: Gain control of target artifact or
creature until end of turn. Untap it. It gains haste
until end of turn.
If Hierophant Green or the creature it's paired
with would become unpaired, sacrifice them.