The last One
Garen can carry...... and the key is Speed + 45% CDR.
You dont need more armor because your W pasive have change. Now u need HP + Damage.
The key core Items are Black Cleave + Mercurial Boots, try to rush this two items.
If you cant trade in lane dont do it, now Garen have a good Late game Gear (dont lose the head trying to kill on top).