I think in milaethera if you wanted to invoke religion to cuss someone out you would turn to the actual natural forces that arise from the elements which the deities of said religion sprung from
"may fire destroy your home"
"go (die) in a pit/under a rock"
"get blown away by the wind"
"blight upon your lands"
"go drown"
a lot of these are just telling people to die so I may need to workshop these more but, you know.