On early game try to zoned your ennemie and farm, if you see your mark in the crabs go take it its good for your laning phase but be carefull about the ennemie jungler !!

in early try to stack the max passiv as you can

Farm in early for get your Botrk and berserker greaves fast! use your teleport only for the first back or if you was killed


stuff in early : BOTRK berseker greaves and phage

Now if you have killed your opponent in top and get some passiv stacks you can roam in midle or bot if your tp is up.
in mid game try to have 6-8 mark on your passiv
if you cant roam and so far behind in the game, just farm and stay under tower

stuff in mid game : BOTRK, berseker greaves, triforce, BF.

In late game you need to stay focus on adc or somoene squyshi and dodge all cc use your ult for save your team or for contest drake/nashor or push tower

in late game try to have 10 mark or more its ok

save objective and dont take risk

Stuff in late : BOTRK, berseker greaves, triforce, essence reaver, sterak gage, zephyr(or 1 optional item)