Dual Life Outcast

Binary (Whenever you cast a spell, switch this permanent between on and off. It starts on.)
As long as Dual Life Outcast is on, it is a Horror and has infest 1 (Whenever a creature dealt damage by this creature this turn dies, return it to the battlefield under your control with a -1/-1 counter on
it.)
As long as Dual Life Outcast is off, it is a Human with lifelink.