Mulligans
A twist on the classic Freeze Mage archetype, this deck makes use of various freeze spells to stall out the game while setting up your win condition in Sif.
Instead of relying on card generation tools like Infinitize the Maxitude, this deck opts to cycle to its key cards as fast as possible. Aside from the easy-to-get Frost, Fire, Arcane, and Shadow spell schools, this deck features Tram Mechanic with its Barrel of Sludge and Watcher of the Sun to fulfill the Fel and Holy spell schools, respectively. Discovery of Magic would then be used to complete the remaining spell school of Nature (or whatever other school you missed).
Jaina's Gift is primarily used as card draw but can also be used for early game board control or burn if the opponent has armour or lacks a source of healing.
Mulligan: Tram Mechanic, Miracle Salesman, Watcher of the Sun, Void Scripture
Vs Aggro
-2 Jaina's Gift
-2 Molten Rune
+2 Frostbolt
+2 Fireball
Vs Control
-1 Flamestrike