Why can't frozen heart just be a generic hp+mana+20% cdr item?
like everyone keeps trying to tell you, having nothing but high armor just doesn't work for an early purchase.
honestly, omen/thornmail/tabis are just fine for high physical damage reduction, specifically as 2nd or 3rd armor options.
I could see frozen heart with as low as 50-60 armor and +300-400 hp.
usually when u need armor asap you've already invested 1100g into tabi's, so building into heart will severely delay magic resistance, bonus hp, and near-mandatory grevous wounds.
So your items slots end up looking like this:

now I must have around 2k before being able to complete items and have no room for pinks/pots.