I found a bunch of house rules that could be used to weaken The Tower in this document:

• Towers cannot capture over empty tiles. (Thanks to viberunner)

• A single-storey tower can only capture a follower on its own tile. Each additional storey adds an additional tile of range in each direction – the rate of increasing range is the same as the normal rules, but the starting point is less powerful (the “No Surprises” rule). (Thanks to keyofnight)

I found a bunch of house rules in this document, some of which could be used to weaken The Tower:

• Towers cannot capture over empty tiles. (Thanks to viberunner)

• A single-storey tower can only capture a follower on its own tile. Each additional storey adds an additional tile of range in each direction – the rate of increasing range is the same as the normal rules, but the starting point is less powerful (the “No Surprises” rule). (Thanks to keyofnight)