As in, not something like the warp core-breach boost, which was a permanent amp (and Hulk has had many of those kind, but the out of ordinary stuff) and boosted his normal abilities, but something that you won’t usually associate with Hulk. Also avoid Immortal Hulk stuff
Examples:
Flight - Hulk #3
Unipower - In Incredible Hulk Annual #10 & Universe: Hulk
Venom symbiote - Absolute Carnage #3
Apocalypse armor - Incredible Hulk #457
Telekinesis - Savage Hulk #4
Giant size - Incredible Hulks #635
Anything else you guys remember?