Together Forever and Ashnod's Altar on the battlefield.
({2} magic symbol) ({R} magic symbol) available.
Steps
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 Ornithopter.
First Day of Class triggers, putting a +1/+1 counter on Ornithopter.
Activate Together Forever by paying ({1} magic symbol) , making it so the next time Ornithopter dies this turn, it returns to your hand.