Lane Phase Skill Unlock: 3-2-1-4 | Skill Upgrade: 2-2-4-3-1-1-1-2-3-3-4-4 Focus on surviving and securing souls, mid game we focus on turrets twitch.tv/linepro
Early Game Your turrets get part of you stats so you want to make them tankier. You will most likely not have 3 flex slots for purple so just go for next items or upgrades. Your 2 works on your turrets for extra regen and atack speed.
Early Game We take Monster Rounds early game with Extra Regen to sustain through the early game. Prioritize walling off the enemy to get free last hits and push the enemy under tower so you can get some free denies and tower damage.
Mid to Late Split push once you get Intensifying Magazine as you'll start shredding towers and walkers (especially with monster rounds, which increases damage to structures). Colossus is the key to this build: it massively increases your overall health pool and its 40% to all resists lets you out-heal almost anyone if you're in your heal radius!