Able to rip the celestials armor

(context) the amor was without it´s shields

A sword that is able to cut thru dragon hide easily impresses Singurd

a baby dragon can hurt Iron man

the dragon fafnir is particurlarly powerful, can take hits from Mjolnir

A dragon can "burn like the sun"

A dragon was a powerful magic user who trained under dormanu himself

this dragon can manipulate reality

overpowers Iron man esily

said that he would destroy the world and Tony believed him

he however thought it was impressive that Tony defeated Fing fang foom

One of them, is able to fight Odin, Thor, Vidar, Hermond at te same time

(limit) They ALSO seem weaker to iron which could explain some low showings

Able to amp people from normal human to able to shake the whole world

In a very similar way to the Hulk family, it make Singurd "more immortal" and "twice as powerful" even tho he was already legendary in Asgard

Can hurt Immortal Hulk

Well for starters Hel is the biggest realm and it is also implied to be the most populated too. They fear Hel turning on them because they think that if it enters the war sgard and etc would have no chance

For many years the fight of Skurge was a headscratcher for many people: how could he be challenged with beings that can e defeated with normal guns? Well Loki confirms they were Magic

One of Hels chieftans, has the power of a mountain

Angerboda a giantess is almost as strong as Thor

Hel has many guardians, garm is one of them