Need an offensive armor item for marksman in ARAM
Can't play at all in this mode even as tank because the ad is always caught out

Can't play at all in this mode even as tank because the ad is always caught out

you mean like...

it's not armour but it gives the appropriate amount of surivability
Just play AP amumu and 1 shot bitchs.
Atma's Impaler, oh how I miss thee... http://vignette1.wikia.nocookie.net/leagueoflegends/images/3/3b/Atma's_Impaler_item.png/revision/latest?cb=20130319090010