Frostgrinder (Earth-6531)

"Frostgrinder! That's what the Vanir called their wretched parody of Bifrost!"

- - Thor to Hogun

The Frostgrinder is a space bridge created by the Vanir in an attempt to mimic the Asgardian Bifrost.

History
The Frostgrinder was created by the Vanir in an attempt to mimic the Asgardian Bifrost.

After the Frost Giants under the control of Ymir, invaded Asgard, Thor, Loki, Sif and the Warriors Three had Odin and Heimdall allow them to travel to Vanaheim after Hogun his people were in danger of the Trolls, led by Ulik.

There, they found Ulik had allied with Ymir, hoping to use the Frostgrinder to return to the Troll homeworld of Nornheim. Thor was able to battle against the Troll leader, and killed him after a brutal fight by throwing him at the point of the Frostgrinder, which activated and disintegrated him.