A common card that is a staple in popular formats, like an Alpha Lightning Bolt, can be worth hundreds, while countless bulk rares are worthless
Similarly, commander damage dealt to player by each commander is tracked separately
It was commonly found in Pioneer alongside Karn, the Great Creator and Nissa, Who Shakes the World before Karn got banned out of the format
I always viewed it as a win-win, though the decision is ultimately left to your opponent
These massive monsters are so powerful, there can only ever be one of them on the field at a time
One reason for this, Rasmussen says, is: "I don't know that it's going to be a strictly power level sort of thing." He gives the example of Lotus Petal - not the most powerful mana accelerant, but a card that raises eyebrows, and might warrant a higher place on the table than might be expected