Gisas key mechanic is committing crimes, which involves targeting opponents, anything your opponents control, and/or cards in their graveyards
all cards from core sets after Seventh Edition and expansions after Alliances are fully featured in Magic Online where you can buy and sell cards
Gamble, Crop Rotation, and Worldly Tutor The lower brackets do carry the restriction of "few tutors" already
Reanimator mainstays like Griselbrand and Archon of Cruelty utilize the Flying ability to attack opponents on multiple axes, generating huge advantages for you while rapidly reducing an opposing life total
Its a 'may' and that means that if your opponent does not have any creatures you can exile, the flip does nothing
Maybe as an Easter egg, somewhere in the scene we see the Mothra Twins, two tiny fairies, singing to Mothrathey might just be resting on a hill or hovering above the grass somewhere