Im going to take a while stab in the dark and say that maybe TB will be “tiered”. As in at lvls 1-5 you are might 3 as a group, then 6-10 might 4, etc etc. Could be wrong but it seems kinda logical, that way eventually your party can take on and kill Dragons and Ogres. ??
At present, your options for increasing Might include:
[li]The Destiny of Heroes spell[/li][li]The Evocation of the Lords of Battle prayer[/li][li]The Potion of Giant’s Blood[/li][li]A mount with a higher Might than your own[/li][/ul]
I could certainly see a magic item like a dragon-slaying black arrow that can increase your Might in a conflict against a particular creature.