Cast Pirate's Pillage by paying ({R} magic symbol) and by discarding a card from your hand.
If you have less than four experience counters, Mizzix triggers, causing you to get an experience counter.
Holding priority, cast Retierate with buyback by paying ({R} magic symbol) ({R} magic symbol) , creating a copy of Pirate's Pillage and returning Reiterate to your hand.
Resolve the copy of Pirate's Pillage, causing you to draw two cards and create two Treasure tokens.
Activate both Treasure tokens by tapping and sacrificing them, adding ({R} magic symbol) ({R} magic symbol) .