The powers of surtur that was in the newest daughter of Odin and Freya, were enough to power Heaven and probably was what was powering the angels planet sized prision

Sindr said that she "boiled oceans and (somehow) burned stars. Arguably she did it while inside her realm, where she is stronger but maybe she just did it too

Sindr hurt Brawn (a weaker Cho Hulk), maybe two shot him?) (War Of The Realms: New Agents Of Atlas)

Sindr was about to burn the whole world

Fought Sun wukong and swordmaster

Aparently can generate 445 000 Hercs (?)

Their "explosives" are comparable to nidavelir mountain(s). The fire is said to be hotter than the sun

Nidavelir mountains are as big as moons. (Vollstagg survived the fire by being full of goblin blood)

eventualy overwhelm Cho (War Of The Realms: New Agents Of Atlas)

Fire hurt Cho hulk

React and burn bullets in the air

Hurt the a robot mimicking the goddess pele

Punisher sword, that could decap Jotuns, melts/breaks upon contat

(limit) Decap by the Ebony blade

Take punches from Io

io can affect brawncho hulk

we are told that the nidavelir mountains (who are moon size) are burning