If you needed any more convincing that Babbling Book is a sick card in Tempo Mage, check out this Rooftrellen Rank 1 Legend Tempo Mage w Babbling Book. Rooftrellen has already hit rank 1 legend on NA with this list.
It looks like a more of a greedy control list with double Cabalist’s Tome and Emperor Thaurissan, but it’s obviously working out perfectly.
This deck has plenty of burn, lots of reload with the Tome’s and Arcane Intellect, some potential for fireworks with Archmage Antonidas and discounted spells, and of course Yogg-Saron.
Have fun!