2021-03-19 To determine the total cost of a spell, start with the mana cost or alternative cost you're paying (such as a flashback cost), add any cost increases (such as kicker costs), then apply any cost reductions (such as that of Cloud Key's ability)
That's why it's better in a 40-life format like Commander, rather than 20 life
At first, it seemed like this card would be unbeatable
Remember, you're playing green
Flavor-wise, these diverse spells are contained in the Biblioplex's archives in the campus of Strixhaven, and gameplay-wise, these special cards will appear in regular Strixhaven boosters, with one in each regular booster of the set and more in Collector's Boosters