Hulk has been shown to be susceptible to matter-manipulating magic. Also, a relative weakness is still a weakness. He's resistant to direct dark magics, though. i.e. Hulk's weakness to magic is not a weakness like Superman's weakness to magic.

It also depends on at how you want to classify stuff like the OdinForce, Zeus's lightning, the power cosmic, etc, because some of those things can get through his defenses.

Regardless, Hulk's real weakness is the greatest of all weaknesses.

hulk2-400pic2.gif

HULK NO SMASH
HULK...LOVE