Blue has a variety of creatures that care about instants and sorceries and are quite large relative to their mana coststhink Tolarian Terror, Haughty Djinn, and Delver of Secrets/Insectile Aberration
This is the card you want to open at Prerelease, not least because its probably the biggest bomb in Bloomburrow Limited
I was playing the MTG: Duskmourn Miracle Worker deck, and managed to miss quite a few land drops before I was able to get my enchantments and sorceries working overtime to create angels and buffs
Have you played with this card
This deck will make you think differently about every Hero card in the game, which is a big reason why it's so high on the list
This is because, for just one mana, you get two artifacts onto the battlefield, Blood Fountain and a Blood token