Warden of the First Tree

{1}{w/b}: Warden of the First Tree becomes a Human Warrior with base power and toughness 3/3.
{2}{w/b}{w/b}: If Warden of the First Tree is a Warrior, it becomes a Human Spirit Warrior with trample and lifelink.
{3}{w/b}{w/b}{w/b}: If Warden of the First Tree is a Spirit,
put five +1/+1 counters on it.