Start with a health pendant and stay in lane till u get enough for the belt and keep spamming Q even on minions for last hitting them. When you get enough recall and get warmog and continue to spam Q at ur enemies For now just keep harrasing and let them push when ur low health and then rush them with agaony ring and harrah with infected cleaver and u should get the kill easily and farm gold. REMEMBER YOUR GOAL IS TO GET FAST GOLD AND GET TANK ITEMS AND START GANKING WITH YOUR TEAM. When you get the boots of swiftness you should walk faster then most champs and agony ring will wreck your opponents while spamming Q everytime u get it

Pros
-you got speed on your side and ghost and flash to chase or run away
-High Health in early game and if u finish build you shud still have more than enough health to tank 3ppl chasing u
-Good DMG with sunfire cape with agony ring and thornmail for people chasing you to burn behind
-You can 1vs1 any1 basically bvecause pf hea;th regain from ult and ur high dmg from agony ring and infected cleaver with sunfire cape

Cons
you walk faster then ur teamates and you may leave ur squishy's behind
you may get tartgeted often because ur the guy they want to take down so keep agony ring on incase they use snares, slow, stun and etc.

Dont think they cant kill you because over experience i know that this build can take anyone down 1vs1 even a tryndamere because of thronmail health regain and you do good damage with infected cleaver