While this is pretty terrible, the card does have some Secret Lair printings, which sell for upwards of $3
Or, perhaps youre being offered one of these cards in a trade
It's still a library.If enchanted library would leave the battlefield, exile this Aura instead
The Gameplan A few examples: Turn one Legions Landing, turn two Saproling Migration, turn three Song of Freyalise plus History of Benalia does 16 damage
The decklist featured here comes from GibButtkins98 on Moxfield and uses Anikthea, Hand of Erebos as a value commander combined with constellation cards, pillow-fort enchantments, and all the typical enchantress card advantage engines
The last of that bunch gives you three cards at instant speed for only a single blue mana