Empress implements a lockdown/prison strategy with it’s namesake card, Empress of Ice. While your opponent can’t untap, you flood the board with troops that kill quickly through Dreadling generation. Copycat provides protection through redundancy and ensures that you have back-ups for your essential pieces. The deck has enough room to include minor disruption in counterspells.
Comparable Archetypes in Other Games
MTG: Stasis Decks, Pickles Lock
Lyrgoiph’s Empress (Immortal Weekly 3-0)
IMindGamerI’s Empress (Immortal Weekly 3-0)