Invert Polarity Invert Polarity is a powerful counterspell that flips a coin, so you can it fit into your Okaun, Eye of Chaos + Zndrsplt, Eye of Wisdom deck
Just think of Grunn, the Lonely King attacking alone with Rafiq on the battlefield: Grunn doubles its power and toughness, gets any exalted triggers, and then gains double strike to smash in for over twenty points of damage
A ton of decks will play this in Commander, and it's a fairly unique card
This Looter is a lot of things all in one neat package and so gets a lot of slots for doing two different things in the deck, sometimes you need a two drop to even your curve, sometimes you need evasion to utilize other effects and have a way of winning, sometimes you simply need more bodies in your build, sometimes you are land light and really want some more early draw to make your land drops more likely and sometimes you have some situational spells you really want a good way of putting to alternate use
For example, you can't use Muldrotha to play a land if you don't have an available land play or to cast a planeswalker spell during your end step
Imagine someone with thousands or millions of cards, compared to someone who only has a couple of decks