Tireless Defender

Flying, Lifelink
You may play Tireless Defender from your graveyard as if from your hand.
Whenever a creature is put onto the battlefield, untap Tireless Defender.
{3}{w} Tireless Defender gets +1/+1, firststrike, and defender until end of turn.
"Sleep is for those with nothing better to do."-Gynejas the patrolman, last words