is good. I used him to get past a brick wall in Silver 3 and 2.
He's a strong laner so in most match ups you want to crush top lane. HOWEVER, you can't afford to get Ganked so don't over-push.
If you lose the lane (die twice), you should not go damage but instead go HEAVY tank ASAP (forget about Cleaver rush). TANK THE HELL UP.
is strong for creating a brick wall in Top to defend your tower.
Several scenarios (just general guidelines):
1. You win lane, the rest of your team is overwhelmingly feeding (you are behind by more than 5 points and several towers have fallen elsewhere)
Just keep split pushing to try to draw their team to you. 75% you've lost anyways but its the only option left.
2. You win lane/go even, the rest of your team is a bit behind (within 5 points)
Take Tier 1 tower and then TRY grouping up a few times. See if there is any synergy with your team. In low elo you can bait the enemy team into firing all of their spells AT THE TANK more than half the time. This is often more than enough to turn the tide (all of a sudden your team is shooting at their carries while the enemy is wasting their weapons on you). If you establish this pattern (they fire at you instead of at the ADC/Mid), you will start to win team fights.
But if you notice this isn't working and team fighting actually leads your team to fall further behind, go back to split pushing. But I'd say you've lost 75% of the time.
3. You lose/feed lane, the rest of your team is even/ahead
Buy
and just DEFEND YOUR POSITION. Just stay in Top lane and hope you get carried. Create a complete brick wall so that the other Top laner can't get your tower and may get frustrated and leave. If he leaves, then you can push to his tower and split push. If he stays, he's not getting past you so long as you tower hug and keep spamming Armor items and limit his kills. Usually in these games, you have better players in other parts of the map who can carry and your only job is to defend that tower and not feed further. It becomes a test of your defense abilities.
4. You lose/feed lane, the rest of your team is behind
Same as 3... but I'd say you've lost 90% of the time regardless.