I just think an AotL should have an item it builds in to.

You notice how Kindlegem builds into SS (individual buff to group buff)?

I think AotL should combine with a giant's belt to make a better late game item for the user(group buff to individual buff)

It wouldn't lose the buff, but let's be honest, the aura is small enough late game to not really make THAT much of a difference. That way, the person can still provide the buff to the team, but have some more survivability out of it late game.

I can see this being really useful on say, Ali, Taric, Jarvan, etc.

I would even take it on Garen, though I tend to play him more bruiser esq.

If you don't agree, please state why. It might be OP, but w/e.

You need another poll option.
"I do not like idea for other reasons."

It can be made to not be imbalanced. I don't like this idea because it removes functionality from the item for 'upgrading it' (this generally only occurs in gold/5 items) and detracts from the team mindsight AotL should be offering. Especially given that the longer the game goes, the more team centric the game becomes.

So why did I get a downvote?...

Because aegis is already the most needed item in the game, tier 4 would be stupid.

Aegis is a strong item.

Though, I'd personally prefer if they buffed it into a 2.5k item.
Negatron cloak > Mantle

Making it give more MR would make itemization 100% fine to me.