Depending on how your early game goes, enemy team builds and so on you will need to adapt your build. Most of the time build ninja tabo specially if in a match up against yi. Build Mercury's Treads if the enemy team is heavy ap. Hexdrinker is also recommended if enemy team is ap based. If your super fed consider getting statikk shiv for the attack speed and wave clears when your pushing lanes and getting them towers. If enemy is full crit build Randuin's Omen specially if enemy adc is fed as this will prevent a lot of their damage allowing you to get close and kill the enemy carry. Thornmail works in some situations depending on if enemy is full tank and enemy adc is feeding. Build Titanic hydra if your team is carrying you as you want to focus on power farming and taking objectives if your team is ahead plus you will have to prepare for late game. You must build Sterak's Gage in every game at some point because it improves your winrate in game by 20%. Trinity force is something you should get if your 4/0/0 in the first 10 mins of game. early game focus red side jungle. If you start north red side than focus ganking/camping top lane as its free kills farm and xp. If a lane is loosing don't gank it. If bot lane is loosing don't attempt drake. If mid lane wins lane you can start invading enemy jungle and taking their camps. Keep eyes on map and make sure to ward key areas like river. Keep an eye on map and more specifically the enemy jungler as depending on match up you will want to attack the enemy jungler or stay away from them.