Spend this mana only to cast an instant or sorcery spell or to gain a Class level." : Level 3 Whenever you cast an instant or sorcery spell, that spell deals damage to each opponent equal to the number of instant and sorcery spells you've cast this turn
Mind Stone can be cashed in, Map does its thing and the other two are both on lands which are something we want anyway
As a backup, we also have Xerex Strobe-Knight, which does essentially the same thing except it makes 2/2 tokens but has the downside that we can only activate it if we cast at least two spells each turn
Why you can trust us We spend hours testing games, toys, and services
Play Vivi and other threats that grow as we cast spells, like Red Mage's Rapier, Astrologian's Planisphere, and Monastery Swiftspear, and then cast as many cheap card-draw and removal spells as possible to grow our creatures
Without any synergy to power it up it is too expensive and sorcery, a lot of times in more normal decks the milling of two cards will be painful and you would have much rather been casting Anticipate