yes it's called "carbos"
x speed
It's easiest if you have a power item from the battle frontier and pokerus, if you want to ev train in hp kill 26 bidoof while having pokerus and wearing the appropriate power item in this case the one that boosts hp but halves speed (temporaraly), kill 26 to max out the stat if you dont have either you'll have to kill 252 bidoofs
Revaulting your item collections
nevermeltice
Charchol
It signifies that the item is a consumable "boost" item.
lightining type isn't a type
There's no such item/pokemon. Do you mean Giratina?
Charcoal is an held item. It boosts the power of FIRE-type moves.
kind of. you can get a code that highly boosts the chances.(i dont know it).
give the item to a Pokemon and then trade that Pokemon.
Snowshoes are not an item available in any Pokemon game (That i know of) When you are in snow, the speed at which you walk is always kept that slow, you cannot change it, it is just the game.