There are a lot of gaps in the rules for DnD fall damage. One of those is the damage dealt by another object fallingontoyou. You can use aDnD homebrewto calculate damage from a falling object any way you like, but if you’re stuck for ideas, here’s a suggestion – try things the...
damage bonuses and other macro effects. Why retired: My players already came up with macros to calculate the damage bonuses and stuff with Dynamic Active Effects, and I apply the conditions with Combat Utility Belt. It also looks to be bugged when combined with the Tidy5e Sheet module. ...