Cards like Stitch in Time, which lets you take an extra turn after a successful coin flip, will let you build a mana engine, while Krark's Thumb will allow you to flip again
Earthshaker Giant Earthshaker Giant may be more expensive by one mana, but as Game Night's creature version of Overrun to synergize with The Great Henge and similar effects, more than makes up for the extra mana, as does the huge body
Sacrificing Treasure from Pitiless Plunderer, getting additional card draw from Obsessive Pursuit, and The Ozolith for insurance are all great cards to use here
Based on the latest market prices tracked on TCG Stacked, Giant Spectacle is worth about $0.08 USD for a regular copy and $0.33 USD for a foil copy
With Zoom, you can see everyone's screen and talk at the same time, the video quality is compressed in such a way that even less-powerful computers can run it well, and there's even an app you can run off of your phone to stream from your phone in the event you don't have a webcam
Putting a flashback card in the graveyard is rather like drawing it, so this defaults to a 2-mana draw three, which isnt terrible