This makes it less flexible than Past in Flames, but potentially much more powerful
Sample Bant -- Standard Creatures (12) 2 Arboreal Grazer 2 Dream Trawler 2 Knight of Autumn 3 Hydroid Krasis 3 Uro, Titan of Nature's Wrath Planeswalkers (11) 1 Narset, Parter of Veils 2 Tamiyo, Collector of Tales 4 Nissa, Who Shakes the World 4 Teferi, Time Raveler Instants (4) 4 Growth Spiral Sorceries (2) 2 Shatter the Sky Enchantments (3) 3 Elspeth Conquers Death Lands (28) 1 Island 1 Plains 3 Forest 1 Castle Vantress 2 Fabled Passage 2 Temple of Enlightenment 2 Temple of Plenty 4 Breeding Pool 4 Hallowed Fountain 4 Temple Garden 4 Temple of Mystery Sideboard (15) 3 Aether Gust 1 Agent of Treachery 4 Devout Decree 2 Dovin's Veto 3 Mystical Dispute 2 Questing Beast Bant Doesn't Break the Most Rules
Then, try to lure her into investing all of her the rest of her mana in Circles or in some other defensive measure, and, when she is out of mana to spend on them, slip in a spell you really want to cast
Well, I designed the card that turned into this card
Roaming Throne can cost as much as $90 for the foil version, while Goblin Lackey is around $30, too