Trainers » Guzma & Hala
You can do any part of Guzma & Hala as long as there's at least 1 card in your deck.
Source: Cosmic Eclipse FAQ (2019-10-18), TPCi Rules Team (2019-10-31)

Relevant cards

Note: All applicable cards may not be listed below.
SM12_193
SM12_193
SM12_229
SM12_229