Question about this feat

[Pedonar]

is it possible to calculate this? If not then what tier is It? And Is it possible to calculate speed from the same feat ?

there was a fight between the mc and a dragon the dragon was breath attacking the mc with poison while the mc was running across half of the continent and it took 7 days nonstop.

 

[It_is_i_wyatt]

does it actually destroy anything or is it just poison, i know it said it destroyed cities but does it mean that literally or does it just mean the cities were ruined due to everyone being dead and everything being poisoned

 

[Pedonar]

i think he can do both in some panels it shows some of the flying pieces of buildings from the city but it wasn’t that clear

 

[It_is_i_wyatt]

im not sure, try the calculation request thread, see what they tell you, but yeah this is a weird one, especially since it was done by potentially thousands of different attacks over the course of 7 days