who can kill spiderman or wolverine? or both together?

ever notice that weird awkward tension that appears when a crazy person starts talking in the middle of a crowded room? whats that all about? i dunno...............................................................................................

Thanos called himself "The god of death"
Lookup Silver surfer comic.

even the torch could kill both at once, i don't think cyber could though, but there are a ton of people that would be able to...... if they could get them together at the same time
if they couldn't get them to be in the same place you still got all the powerful telepaths/telekinetics, graviton etc, etc.........

cyber in a symbiote suit