[Autumn]

>What are you talking about? if you get hit with book smack and have 5m left over, if you critically hit the person who is now in front of you you gain 1m back from the critical hit, and thus gaining your action economy back. (5m > 3m)

How is an average tank/mage/etc going to crit someone reliably enough to regain action economy?

As per my last post I did explain it afterwards, its not always a solution but it is certainly a very common solution for a lot of classes.

A weakness that takes no investment to exploit and has no counter - not to mention makes no sense from an IC perspective. Your book isn't a 30lb sledgehammer to the helmet. Its a book. Hitting heavy armor. Not every class has 1-2m movement options to invalidate this, in my case my only option was to do half damage and then guard (I think while their teammate healed off in the distance completely out of reach, but that wasn't as relevant to this)

The book still does magical damage when it hits someone so I don't know how to explain that to you, but certainly in the explained scenario you are being controlled away from their team mate, thats just tactical play and not anything strictly OP, the person controlling you is still using their momentum to do it, further limiting their own actions in the nitty gritty of things while your team mates can do other things.

Teamfights exist. One person sacrificing an action to halve the actions someone else can take can vastly change the flow of a fight. In a 1v1 maybe its balanced out by the fact they spent that action, but the game shouldn't be planned around those.

Of course it changes the flow of the fight, you're spending your momentum to control someone who is able to change the flow of the fight in their favor, but in doing so you're sacrificing a good portion of your turn on very little damage and only control, changing how the fight works can absolutely go both ways and you shouldn't only think of yourself when considering these sorts of things.

I fail to see why it should be changed, its not egregiously powerful or anything, and I've already listed its downsides majorly, if for some reason someone is solely book smacking you to limit you and no one else, I think the problem might just lie on your team mates for not doing well and responding accordingly there.

Building a little bit of CEL for turn order is never a bad thing either on tanks.