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
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
This leads to explosive turns where you can dump five or six high-cost Vampires onto the table for free
The Broodmoth brings Boromir back, but Solemnity stops the flying counter, and lets you activate Boromir again
The trade-off of using a tapped land likely rules this out of aggressive decks, butthat doesnt mean its unplayable
I love permanent spells with flash and I love artifacts that you can grab with Urza's Saga