Cast First Day of Class, allowing yourself to loot once due to learn and making it so whenever a creature enters the battlefield under your control this turn a +1/+1 counter will be put on it.
Cast Memnite.
First Day of Class triggers, putting a +1/+1 counter on Memnite.
Activate Together Forever by paying 1, making it so the next time Memnite dies this turn, it returns to your hand.
Activate Ashnod's Altar by sacrificing Memnite, adding 2.
Together Forever triggers, returning Memnite to your hand.