The difference is Overwhelming Splendor only affects the enchanted player
It served as temporary disruption (Dream Fighter), protection (Mist Dragon), additional downside (Taniwha), and a nifty tweak on looting (Teferis Imp)
Then mass bounce instead, and then let's move on
There are also some great lands that can create any color, both budget and non-budget
The deck features a number of cards that both allow you to sacrifice permanents and that generate tons of value when you do including many cards with abilities such as card draw, life gain, direct damage, drain, and other powerful effects when you sacrifice a permanent
He works great at bringing a large swath of mana and he'll stick around for longer