Sacrifice a Treasure: Put a loyalty counter on Marilye, Dreaming Big.
[+1]: Draw a card, then discard a card. If you discarded a nonland card this way, create a Treasure token.
[–3]: Gain control of target artifact. It becomes a Treasure and gains “{T}: Add {U}.”
[–8]: Target opponent chooses a nonland permanent they control. You gain control of the rest.