Before we get started, I want to acknowledge that everyones budget is different, and what qualifies as a budget deck will vary from person to person
Very likely the most powerful Booster Draft bomb of all time (and no slouch in Constructed), Umezawas Jitte has been leaving its mark on Magic players since the first one was pulled from a mono-black Rats Standard precon in 2005
1 Nicol Bolas, The Ravager Bolas, The Arisen This is it, the strongest Nicol Bolas and with good reason
But it's not great when you compare the bang for your buck, since most normal Commander decks cost $40 - $50
More importantly, the set has Gathering Stone and Chronicle of Victory
This feels like a very high risk hope you get a high reward type spell which is right at home in lower power EDH