Predecessor Builds > Greystone > Armor shreder
If you want to support your carry with removing High amount of physical armor.
You can go more of a bruiser route if you pick high health items, wery high attack speed route or you can just finish it of with high armor items or if they have all cc characters just go tenecny items that are going good with your plan (physical, magical deffence or high health or attack speed). This should depend on what is your team composition, do you have already a tank and a bruser or are you just leading the enemy team by allot so you can all go high damage route. Just remember if the game comes to late game (+40 min) there is high chance they couth up to you in lvls and items so you should change some of the items to tank or bruser items depends what you need in your teame comp.