Originally posted by The Nuul
It is secondary adamantium.
It all comes down to strategy then, if he's going all out, Kalibak should be able to destroy a secondary adamantium Ultron quickly, I'm not aware of Kalibak's strength compared to Thor, but he's certainly in the same league. If Kalibak has his club, and it gives him good ranged attacks, I would give him about 7/10 -losing mostly for the lack of brains-.