(I’m gonna go more off numbers then continental or planetary since those terms get rly messy sometimes, so I’ll be a bit more pragmatic and less simple on scaling.)
To blow the entire Earth to bits you’d need roughly 10^32 joules’s worth of kinetic energy, and since Durza blew out a chunk of the Earth (let’s say 1/3 for a good estimation) we can divide the number of joules by 3, and 32/3 = 10.6 (or 11 roughly.)
Durza released at least one hundred billion joules (or less) of kinetic energy when he exploded, though I’m not rly sure on his planet-shaking magic beam he threw at Theos once. It is a bit weird too as he struggled to fight Theos and apparently A.G commanders (though the commanders were curse users, it was still weird) despite his various magics and curses, but I’d say he’s fairly powerful.
Speed is a bit unclear for Durza, but he did have the Lightning Curse which could put him at 270,000 MPH according to mteooffice.gov (most reliable source I found).
Durza is literally just pure energy so anything non-magical goes through him, though he’d probably be mostly invulnerable in his human form too because of his curses. Overall, Durza’s stats should be:
Power: Can exert at least one hundred billion joules
Speed: 227,000 MPH (applies to combat as well)
Durability/Invulnerability: Immune to physical damage and maybe lightning and some other elements? (because curses?)
Additional abilities: Necromancy, elemental generation/manipulation, immortality, intangibility, and can give or equip any of the dead he raises with magic or curses.
