Every good crime boss has eyes lurking in the shadows, and Xanathar is no different
Lizards have the advantage of low-costing spells with a clear gameplan
13 paper damage tokens
Urza's Command can drop the power of other player's dorks out of nowhere, make a Powerstone, make a tapped Construct token to win the game, and then scry and draw, so I think that the Construct and scry and card draw are the default here, and that's pretty good for four mana instant speed
The combo relied on casting multiple copies of this red spell and its brother Unexpected Windfall, and it would generate an insane number of Treasures that can be exploited with Goldspan Dragon to cast multiple spells on a single turn and chain Time Warp effects in the form of Alrund's Epiphany
Another card to double the number of tokens you control, even if they aren't all duplicates, is Cadira, Caller of the Small