Chainer, Dementia Master
{3}{B}{B}
Legendary Creature -- Human Minion
3/3
All Nightmares get +1/+1.
{B}{B}{B}, Pay 3 life: Put target creature card from a graveyard onto the battlefield under your control. That creature is black and is a Nightmare in addition to its other creature types.
When ~this~ leaves the battlefield, exile all Nightmares.