Bernkastel,Witch of Miracles

Costs {2} less for every 3 creatures in all graveyards.

When Bernkastel enters the battlefield, search your library for an instant or sorcery card, add it to your hand, then shuffle.

{t}: Bernkastel deals 2 damage to any target. Use only as a sorcery.
{b}{r}: Regenerate target creature you control.

When Bernkastel leaves the battlefield, exile target permanent an opponent controls.