This doesnt have much of a bearing on todays conversation, but I wanted to bring it up in case you read this article and then went to go look at some price charts and got confused about whether my entire premise was faulty
Normal Magic decks will naturally create inefficient moments where you spend a three-damage spell on a one-toughness creature, so you need to force energy decks to deal with some occasional inefficiency by design
Its fun to have a bunch of boosters to draft with friends, or you can hang on to them for future Chaos Drafts
Of course, the reality is a bit more muddled when black can kill creatures easier, green can destroy artifacts and enchantments, red can deal with lands, and blue can bounce almost anything for a temporary removal
The trade-off of using a tapped land likely rules this out of aggressive decks, butthat doesnt mean its unplayable
This leads to explosive turns where you can dump five or six high-cost Vampires onto the table for free