Each link/key will only work once.
Orcs Must Die GOTY: https://www.humblebundle.com/gift?key=p3pZRyFBsTneHunp
Sanctum Collection: https://www.humblebundle.com/gift?key=rpyenKC2TT8FhenN
Dwarfs!?: https://www.humblebundle.com/gift?key=fhU7zSNVHkVCyNqM
Killing Floor...
Dog meat is meat. I don't see how dogs can't be eaten but cows, pigs, chickens etc can be. It's not like they're not slaughtered either. I've eaten dog before, umad? Can't say it tasted great, but it's still a dish.
Hahaha funny post.
But really, no character is actually useless but because Kishi doesn't build a lot on them they seem useless because they're always thrown aside.
1) Yes it does use chakra.
2) Body flicker is only high speed movement, so no it doesn't go through walls.
3) The longer the distance the user wishes to travel, the more chakra he/she needs. Of course I don't think someone can go from country to country with body flicker alone so there must be...