Local Old Man Ruins Everything (Maximum Ruination)

Versatile for Winging It + The Harbinger combo. Other four cards are flexible, but I'm partial to 3x Open Gate for larger final scenarios and Higher Education. Read the Signs, Spectral Razor, and another copy of Promise of Power are also good.

1x The Hierophant • V is an alternative for Charisma (to have both Summoned Servitor + Dr. Milan in play). Just make sure to mark Dominance accordingly and replace St. Hubert's Key.

Hard Mulligan for:

-- Astronomical Atlas

-- Livre d'Eibon

-- Research Librarian (to tutor Atlas or Livre and gain 2 resources from Astounding Revelation)

Ideal end-game board state:

-- 2x Astronomical Atlas (Priority)

-- 1x Livre d'Eibon + 1x Arcane Enlightenment (lower priority than 2x Astronomical Atlas, since you can just cycle until you hit Arcane Enlightment + Livre)

-- 1x Divination (use Ghastly Possession or another copy of Divination to refresh).

-- Dr. Milan Christopher

-- Summoned Servitor

-- St. Hubert's Key