Amanda Brown

Haste, Mentor (This creature can attack and {t} as soon as it comes under your control; whenever this creature attacks, put a +1/+1 on target creature with lesser power.)

{4}{t}: Creature tokens you control gain haste and training until the end of the turn. (It can attack and {t} as soon as it comes under your control; when it attacks alongside a creature with greater power, put +1/+1 counter on it.)