If I was taking one real world item to the wilderness it would be....an AR15A3 Tactical Carbine Assault Rifle. More distance than a far caster and can pierce through rune armor all packed into one gun
A magnifying glass to start a fire. Getting a fire started is the most important and hardest to do. Matches get wet, used up and a lighter eventually runs out of fuel.
i would take: A nuclear bomb ^.^ lets see them bitchy little hybrids try to kill me now !!
*throws bomb at them, then works out that the bomb would also kill me* Fail ~_~
I would take.. My fridge.. Lets see yous beat me in a deathmatch now !! *opens fridge and starts noming on all the food* would be like unlimited health ~_~