Not Updated For Current Season
The masteries shown here are not yet updated for the current season, the guide author needs to set up the new masteries. As such, they will be different than the masteries you see in-game.
Beggining game and First Blood
I don't purpose mid play but you can go for it if you dont feed aswell. FB by this build is very easy if your lane mate is not ******ed :). Just don't be so fast, wait a few seconds under tower to let enemys go to the bushes, charge powerball and rush by the bush to bash the enemy (target the lowest health champion of course), use exhaust on him, attack by your melee damage (use potion if you will be focused, they don't kill you so fast coz of cloth armor, health regen by potion used) and he would die fast if your lane mate attack aswell. Use flash to blink to the target if its needed to kill him or run away if your health is low. BEWARE - if you find more than 2 enemys in bushes while bash just flash to your tower side, use potion and fast exhaust the enemy - just run and do everything to survive :).
After getting the first blood or just FB trying, stay the line using potions or recall base if minions didn't spawned yet or your mana is imba low :P. Lasthit minions, farm forest, get single gangs to get gold.
Powerball is usefull for running and ganking at the beggining of game, that's why i take first lvl of that. Deffensive ball curl is usefull as a combo with puncturing taunt and items - thornmail and sunfire cape, later randuin's omen. When you're goin' to gank somebody or just initiate clash charge powerball for a few seconds then rush into the enemy using flash untill you're close to bash much enemys how it's possible then use fast ulti, taunt the strongest magic damage dealer (to don't let him use skills), turn on defesive ball curl and use randuin's omen (if you got it allready) to eventually slow. It should kill everything :) if not, just use another powerball and/or taunt + def ball curl to kill other survivers.
It's good way to buy warmog's armor as a last item, swap this for sunfire cape (40 magic dmg is low at the 30 min+).