Cabro, Strength of Life

Flying, Trample, Lifelink
When Cabro, Strength of Life enters the battlefield put a +1/+1 counter on each other creature you control.
{g}{w}{t}: You gain 5 life.
{g/w}{g/w}{g/w}: Put an Experience counter on Cabro,
Strength of Life.
When the 8th Experience counter is put on
Cabro, Strength of Life, double your life
total.