Promiscuous Rabbit

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.)
As long as Promiscuous Rabbit is paired with
another creature, each of those creatures are
Rabbits and have "At the beginning of your
upkeep, if the power and toughness of this
creature and the creature it is paired with are
both equal to 1, then create a creature token
that is a copy of this creature."