Dice is the rout I have gone as well. I like the look of the tokens so I purchased swirled d6's that keep to the same color scheme.

it is to add dice against creatures. undead for this example. or flame weak creatures or conjurations. for multiple answers

Have you looked into the Curse Enchantment Marked for Death? It also adds one dice to attack rolls but is persistent and adds to the attacks of all of your creatures against the target.

Edit: I originally incorrectly posted Death Link. Marked for Death is the spell I meant. I fixed the post.

Unless there has been errata I am not seeing fire shaper ring and dawnbreaker ring are legal for any mage to use. That being said I also do not see their purpose in this particular build setup. The ring only effects spells cast by your mage. I do not feel it is efficient to swap the ring in just to cast one spell and then swap it out after casting. Though you would get the bonus die the combo is cost prohibitive and action inneficient.

Harping on him for not testing the book is a bit rough there @BoomFrog. GeorgeFalcon is new to the game so he still has much to learn about book building. That being said I can vouch he is learning at a very rapid rate. He will play this book in a game and learn it's shortcomings and adapt. We all were new and had to learn at some point.

Teleport has a range of 2 which means your opponent can use it safely away from any zone where you group a lot of monsters. Being able to sprout anywhere though nice is a bit time consuming if you want good positioning. Your opponent should have ample time to build up a counter to anything that may summon nearby without having to risk opposing the enchanted Togorah. This is the strategy I would use against this book but I do not speak for everyone.

There are some interesting choices in this particular book. I will address them individually.

4 Enchanters Wardstones seem a bit excessive. Particularly as you are running few enchantments with multiple copies of each. I would never go with more than two personally even in an enchantment heavy build simply because of the actions required to put them down.

2 Purge Magics seems extreme especially as you are running a Destroy Magic as well. Purge Magic (or Destroy Magic) are never going to really be cast unless you are confident there is not a Nullify style spell on the enemy mage. You have Decoys which are good for testing that for free. I think it is highly unlikely you will be in a situation you would need two Purge Magics and a Destroy Magic. Maybe use the points for more Creatures?

1 Hurl Boulder just seems like an odd choice. I am nitpicking here but as an Air Wizard you have access to a lot of sweet spells for really cheap. I understand the Force Hammer because of conjurations. However wouldn't you get more utility from say Electrify or maybe the Lightning damage barrier? I know Jet Stream works really nicely with the Wizards tower. Acid Ball as well but that is water school. Hurl boulder though nice is a bit pricey to pay for every turn on the tower, even with the Harmonize.

I think keeping books secret is probably the best policy. As an example if you were playing a certain book that has a very specific counter or weakness (Say the druid and fire for this example) it gives your oponent incentive to build a book exploiting that weakness. Unless you are looking for a special challenge it will be a massive handicap to the player that announces his book first.

You will see match-ups like.
Necromancer -  Priest
Druid - Warlock
Enchantment heavy builds - Purge Magic and Destroy Magic coincidentally in book.
Armor heavy builds - Rust and Acid ball coincidentally in book in high frequency.
The list goes on.

I would take it a step further and switch up the actual book design you put your normal spellbooks into in order to further mix-up your opponent. As an example put a fire heavy Warlock book into the leather-bound looking wizard book and the Wizard spellbook into the fiery looking red book. Also randomly place spells in the actual book instead of organizing them so your opponent cannot see what section you are drawing from and notice a pattern. Keeping it truly anonymous is the only way to keep it truly fair.