The Sharpie Cube trend originally spread on Reddit, where it has its own dedicated subforum, though it was popularized via a YouTube short by Magic streamer Ashley Bits
The Orchard can tap for any color of mana and its downside of giving your opponent a creature can be mitigated by giving it to the player who can do the least amount of damage with it
If adding Giant Growth makes games more interesting, Im all for it
Lightning Greaves and Swiftfoot Boots are fine stand-ins (get it, shoes?), and Commander's Plate is much stronger, though much more expensive now
Should the combo plans fall flat, you have the backup plan of a giant commander to slap the table with
But Light-Paws is just really different than Sram, and I think the flash is better than a decently better suite of slightly more expensive auras