User blog:Mr. Bambu/D&D Homebrew Calc: Literally Deathwing

Premise
Literally Deathwing, from World of Warcraft, is in our D&D Homebrew. He resides in Grim Batol as a world-shattering dragon. At one point, while we ran, he was going to destroy the mountain range he was in.

Calc
This map of Greyhawk is big enough to show the hexes, a common map segment that is 30 miles across. For reference, the mountain chain in question is the small spike above the "U" in Corsuk Mountains on the upper right corner of the map. Overall, the chain covers about seven hexes. One hex is 15 px wide and one side is 8 px long. Width = 15 px = 48.28 km Side = 8 px = 25.75 km One Hex = 1722.69 km^2 Multiply by seven for a mountain area of 12058.83 km^2 600 m will me our elevation since these are big mountains. A low-end should work since most mountains would be taller, 600 m should work for average. Volume = 7.235e12 m^3 Fragmentation should work. 69 j/cc. 69 x 7.235e18 = 4.992e20 Joules, or low-end High 6-C. As a high-end, let's assume this also caused significant underground damage rather than affecting the mountains themselves. A tectonic plate of similar size might be destroyed due to Deathwing's attacks being seismic in nature. Crust has 500 j/cc destruction value average. Assuming he did surface damage to it, that would be at least 10000m depth, since continental plates are 30km thick. Volume = 1.206e14 m^3 Energy = 500 x 1.206e20 = 6.030e22 Joules, 6-B Neato. Real fuckin' Nito.

Tallies
Deathwing Shatters Grim Batol (Low-End): 119.31 Gigatons of TNT, Large Island level

Deathwing Shatters Grim Batol (High-End): 14.41 Teratons of TNT, Country level

Neato indeed.