what if BT built from 8% to 12% lifesteal then 20%?

So like a vamp scepter could be upgraded another time for like 250 gold for an extra 4% lifesteal. I understand the need to nerf lifesteal when you did. But I think the main issue was the cap lifesteal not so much the amount you had leading up to your completed BT fully stacked. if you look at the item itself 80 dmg and 20 lifesteal (plus a shield that is also about protection) versus its build bath, the build path isn't really foretelling of what the item will build into.

Seems disproportionate in term of getting the damage first and only the protection on the back end.

Not to mention there are 4 other slots already devoted to damage you'd think the one defensive item would give you more of its defensive build path upfront. since if you wanted more damage you could always just focus on completing the other 4 items instead.

for mages, zhonia gives comparatively quite a bit of armor with seekers armguard compared to the 8% lifesteal imo. if they can stack their armor, why can't adcs have something similar? the 50 armor fully stacked seekers armguard is like having say 15% lifesteal. assuming 5% lifesteal + shield = about same value as say zhonia active.

mhhh okay i did the math and 50 armor is more comparable to 10% lifesteal. any chance it could have a 2% lifesteal upgrade. maybe have it like rod of ages? every two minutes get like 0.5 lifesteal. cap at + 2 lifesteal. Just for BT, since it feels like its in a class of its own compared to the other lifesteal items. seeing as how pricey it is and how much sustain it gives. the other one that comes close to giving as much sustain is gunblade and it has two sustain build paths. imagine if gunblade gave you no spellvamp until you completed the item. thats how blood thirster is like imo. Maybe this same item could also be used to build essence reaver. that way it could have its 10% lifesteal earlier. it would have to be a different item than vampscepter though.