The Ruby deck sparkles with lessons from voyagers near and far, much like Moana Born Leader, while the Sapphire deck shines like Scrooge McDuck Richest Duck in the World and his DuckTales friends, who strive to maximize the use of items
Imagine being able to keep your creatures in hand until the end of your opponents turn to give them pseudo haste
Caging Izzet Staticaster, Visara the Dreadful, and Kamahl, Pit Fighter provides some potent board control tap abilities too without necessarily destroying the entire battlefield
Cinder Glade and Lumbering Falls see much less play than their counterparts (Sunken Hollow and Shambling Vent) but speculators seem to think their metagame share will rise in time
The only other difference is you're stealing from the grave, not their top deck, so you have to make sure you do plenty of milling