Arya, Whisperwind

When Arya, enters the battlefield, create a 1/1 white Unicorn creature token with "Whenever this creature attacks, you gain 1 life."
{t}: Create a 1/1 white Kitten creature token
with "This creature can't be blocked."
{g}{u}, {t}: Create a 3/3 green and white Elemental creature token with
"This creature has trample."