MIGHTY THOR (1989) #477

Thor and Thunderstrike battle the Destroyer, and Mjolnir has been fragmented; In Asgard, Odin knows that Thor must be present during Ragnarok, and unveils a new Thor; Thor discovers that the Destroyers animating force is both Garm and Don Blake; Blake is tired of being used though, and begins to fight back; Together, they defeat the Destroyer, but Blake still resents Thor ruining his life; Thor swears to restore his hammer, then journeys to Asgard to get the truth about Blake from Odin. Brief Hela appearance. Cameos by Sif, Beta Ray Bill, Volstagg, Hogun, Fandral, and Balder.