Oh. Yeah, I would add some.
- Anything rolling natural 5 attack dice or more is a no.
Way too strong when you doublestrike it.
- Giving defense to the mages is a no.
Would make the game to drag on time too much, especially if you start to stack them.
- Anything that remove permanently enchantment/equipment that require quick action is a no.
I noticed that the full action to remove them is a big part of the game. The limited amount of remover is also something.
- Equipment or revealed Enchantment that cost 5 mana or more is a no.
Would be too easy for the wizard to prevent you to ever remove them and they are quite strong for Academy.
- Until they add condition remover, anything that give Tainted is a big no and even then I think Tainted is a too strong effect for the limited hp of Academy.
There are probably others, but that's it for the moment.