Luther, Beacon of Sarenrae

Undying (When this creature dies, if it had no +1/+1
counters on it, return it to the battlefield under it's
owners control with a +1/+1 counter on it.)
{w}{w}{u}, {t}: Choose one—
• Tap up to 2 target creatures.
• Exile target red or black creature.
• Target creature gets +0/+3 until end of turn.
{bull} Gain 3 life.