you dont really use E in lane phase. you might use it every once in a while in a team fight but during the lane it doesnt do much damage for its mana cost and you should W and auto attack to proc stromraiders then slow them
R is for poke or if the enemy thinks they got away you can snipe them
why not cull? cull is only good if you are ahead of the enemy. but if you are ahead build your items so you can snowball
why not dagger and pots? youll need the hp from dorans to stay alive in an all out fight.
what item do i build first?
99% of the time you will go botrk
the new botrk gives good sustain early game and the passive is great. i take this over wits end now. even if it does powerspike later, you have the sustain to get you there.
why dont i ever go hurricane?
yes some people will go hurricane if they have a support that can rush ardent censer. ex lulu, nami, janna
you will get more sustain out of this but there arent many team fights happening when you finish this item. this is why most other ADCs go BF sword before they get hurricane, for the single target damage.
hurricane isnt that great for single target damage
so when do i build rageblade?
if you are really far ahead of the enemy. and you think that you can be weaker for a longer time but still be stronger than them. but once you get rageblade you should be able to fight anyone.
when do i build boots?
you are never ever going to need attack speed boots on kog. you can cap attack speed with the 3 core items and you Q passive.
build your boots after you get wits end and hurricane. then you get another recurve bow before you fully upgrade your boots for the extra attack speed from not building Attack speed boots.
sorc boots is best overall
ninja tabi if they have AA
merc if they have CC
so what do i get for my final 2 items?
get a frozen mallet. this item does wonders pairs with stormraiders.
then get a GA. at this point in a game a simple mistake might cost you the game. getting GA could give you a second chance
if they enemy team has a lot of attack speed then get a randuins.
if your GA is on CD then get a gunblade
what about nashors?
this item is situational. your core is enough damage late game. going nashors will increase your damage by a bit. only build it if you think your team can protect you and your team is lacking in damage. however i would much rather stay alive than build a nashors. if you have full 6 items, you can sell wits end for nashors
why AP elixir?
your W scales off AP. thats the only reason you get AP elixir.
however if you have merc treads because they have a lot of CC get elixir of iron.