The Night Mother

Defender, Indestructible
When The Night Mother enters under you control or becomes tapped, choose a creature you control to become or remain your Listerner. It becomes an assassin in addition to its other types, has deathtouch, and "{b}{r}{t}: Put a contract counter on target creature." Each player may only have one Listener at a time.
Whenever a creature with a contract counter on it dies, draw a card.
{b/r}{t}: Put a contract counter on target creature.
{b/r}{b/r}{b/r}, Pay 10 life: The Night Mothe