(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
Create a 1/1 white Human creature token with
ward (Whenever this creature becomes the target of a spell or ability an opponent controls, counter it unless that player pays .) and a 4/4 white Alien Rhino creature token.
Investigate (To investigate, create a colorless Clue token. It's an artifact with ", Sacrifice this artifact: Draw a card.").
You may exile a Human you control and an artifact you control. If you do, search your library for a Doctor card, put it onto the battlefield, then shuffle.