Its a great way to bypass blue decks countering your other creatures, and it having protection from counterspells itself is pretty important
Here's the beauty of Commander, you can build this a few different ways, and you'll always want to consider combing Dargo with Phyrexian Altar for an infinite loop that needs pre-sacrificed stuff and a third card to win
Sauron, the Dark Lord Sauron, the Dark Lord has one of the highest "power floors" of any commander that has been printed in recent years: simply existing on the battlefield makes him a must-answer threat thanks to his huge stats, incredibly painful ward, the ever-growing army he summons that also replaces itself, and his ability to refill your hand
For each heads, the player can take a Water Energy from their Energy Zone and attach it to that Pokmon
Its easy to see why Niz-Mizzet is worth so much