Also known as: メカエリチャン
One of the two Alter Ego versions of Elizabeth Bathory (Fate), seen in the third Halloween event of Fate/Grand Order along with Mecha Eli-Chan Mk.II (Fate). Mk.I is painted to resemble Elizabeth, and shares in the original's aggressive manner. She or Mk. II can be chosen as the welfare Servant at the end of the event, but their stats and attacks are identical.