Doing so is probably an indication of intentions to cheat
Drawing a card whenever you cast a spell with mana value 5 or greater is excellent with sweepers like pre-rotation Sunfall, where you can kill every creature and draw a card, with removal spells like Leyline Binding, or with the various Overlords that can enter the battlefield for cheap via impeding, like Overlord of the Hauntwoods
It's not higher on the list because of how narrow it is, but its a mana rock with wings at worst
However, Master of Cruelties, Glissa, the Traitor, and Glissa, Herald of Predation are all popular EDH cards
If a player has protection from everything, it means three things: 1) All damage that would be dealt to that player is prevented
When he got on the phone with the Wizards of the Coast representative, oldschoolmtg says that the man was apologetic and they needed all the product back in order to plug the hole. He describes the interaction as nice and laid back, and it appears as if Wizards of the Coast was apologetic about sending literal Pinkerton agents to his house