(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
[I] Exile target creature card from your graveyard. Create a token that's a copy of it, except it isn't legendary and is a Mutant in addition to its other types.
[II] [III] Create a token that's a copy of a card exiled with this Saga, except it isn't legendary and is a Mutant in addition to its other types.

NOTE: Stock image, not actual card.