Young Donkey

{g/w}: Young Donkey gains Lifelink.
{g/w}{g/w}: Young Donkey gains Vigilance,
activate only if Young Donkey has Lifelink.
{g/w}{g/w}{g/w}: Put five +1/+1 counters on
Young Donkey, it loses Vigilance, activate
only if Young Donkey has Vigilance.