Millicent, Prosthesis-Wearer

Double strike
When Millicent enters the battlefield, create Unalloyed Gold Needle, a Legendary Equipment artifact token whith "You can't get poison counters," "Equipped creature can't have -1/-1 counters put on it," and equip {1}, then attach it to Millicent.
At the beginning of your upkeep, put a -1/-1 counter on Millicent.