When the new 3v3 was introduced it came with many new items designed for squishy champions to take of the meta bruisers. However bruiser just bought the same items and still annihilated everything in their path, leaving poor squishies in the dust again. Most of those items have been removed, nerfed, or changed. The BLT is almost not worth buying considering how much it costs now and it's effect is very poor now. Blade of the ruined king is still great for high health champions but most ranged adc dont live long enough in fights to get many hits off, or they just rely on their abilities. (yes i was being dramatic)

So here is are some ideas for items:
I'm not going to include names, costs or stats, just unique effects they give. These effects won't be precise, it is just the idea of it.
If you are gonna comment do it in an orderly fashion.

Chainmail + Ruby Crystal + Pickaxe = Passive: If the attacker has more health then you, their attack speed and damage is reduced. The more health the attacker has the higher the reduction. The health is counted in percent. So a 3000hp attacking a 1000hp the item is more effective than a 5000hp attacking a 3000hp.

Ruby Crystal + Cloth Armor + Null Mantel + Long Sword + Spell Tome = Passive: If damage is dealt that is greater than 10% of your max health it is reduced by 30% and you gain a quick speed boots.

This is an idea for an Enchantment for Boots: Escapist: When running away from enemy champion you gain 2% Movement speed increase for every enemy champion.

Let me know what you think or if you have item ideas of your own for 3v3.

First one might be alright but the extra movement speed when running a way.....there are already enough ways to kite along with flash. I dont think we need more adc getting away lol.

rocks bro

so let me see your trying to tell riot to make items so you can play your main at a higher rate than other people...

smh...

the maps meta is bruising so the 1 squishy carry can 1 burst kill and be bursted very fast so they can be shut down and not mow down the team like teemo used to do.... get a grip realised the other side of the argument dont just flame and say TT needs new items so you can play your squishies who many are extremely versatile and hard to catch up to.

may my case be rested

You need to restate your case because it is unclear as to what you are saying. Are you saying that you think there needs to be specific squishy items for 3v3? What does that mean? and Why?

Do squishys need more survivability early game? Do they need more burst to combat high hp champions?

Unique Passive items are a bad fix to imbalance. Look at the new Lightbringer.

It is far better to tune the existing system, like give dorans blade more hp if ad carries are having problems survivng early game, or if you want more burst mid-game then purhaps a new mini-infinite edge item needs to be added (although I think Brutalizer is good for this).

Also your item recipes are pretty odd. Usually a item will focus on 2, tops 3 stats, but you have 5!!! on one item (hp, armor, mana regen, AP, AD). Who is going to want to build that?

If you make the purpose of a new item clear we can help you better