@NutjobBob thanks for this info on how to kill the shulkers. Right now I'm focusing on prepping my double cave spider spawner by encasing it in a solid block large enough that the shulkers will never teleport outside . Later when I'm not on mobile I'll message you if you have any other suggestions for the killing mechanism (especially for the double spawner I plan on making)

@cepheid No problem :)
When you say encasing do you mean you're making a sold block outside the 9x9x3 spawning area?
If this is the case you'll need to go an extra 9 (maybe only 8?) blocks out in every direction. Also make sure that the walls of the spawning area are not solid (glass maybe?), so the shulkers can't teleport to them.
Alternatively you could just break all the blocks in the surrounding area so you have something like my first image.

I gave them six places to teleport to, which seemed to be almost enough to keep up with the spawning rate. If you have a double spawner you might want to give them a bit more space. I'd suggest keeping the holding areas max 3-4 wide though. Otherwise they won't shoot each other as much.

Think about this...

A caravan, 10 llamas total (maximum)

Each has a chest with 15 slots (maximum from what I've heard)

Each slot has a shulker shell inside it

Each shulker shell is full.

10 X 15 X 54 = amount of items carried by the llamas

@_Confederacy_ Think about this...

A caravan, 10 llamas total (maximum)

Each has a chest with 15 slots (maximum from what I've heard)

Each slot has a shoulder she'll inside it

Each shucker she'll is full.

10 X 15 X 54 = amount of items carried by the llamas

8100, 126 stacks (could be wrong, im bad at using calculators)

@_Confederacy_ Each slot has a shoulder she'll inside it
Each shucker she'll is full.

Did that autocorrect get you?

@_Confederacy_ 10 X 15 X 54 = amount of items carried by the llamas

Isn't it 10*15*27 because the shulker box has 27 slots?

@PenguinMytyMJ 8100, 126 stacks (could be wrong, im bad at using calculators)

That makes it 4050 stacks!!
Or 259,200 items that stack to 64.
If you fill them up with diamond blocks thats 2,332,800 diamonds!! Good luck with that!
In other words, it's 75 double chests that you can move in one go.

I can't type, I'm sorry. :(

a llama parking zone in spawn would be useful here no?

@_Confederacy_ Think about this...

A caravan, 10 llamas total (maximum)

Each has a chest with 15 slots (maximum from what I've heard)

Each slot has a shulker shell inside it

Each shulker shell is full.

10 X 15 X 54 = amount of items carried by the llamas

@NutjobBob Did that autocorrect get you?

Isn't it 10*15*27 because the shulker box has 27 slots?

That makes it 4050 stacks!!
Or 259,200 items that stack to 64.
If you fill them up with diamond blocks thats 2,332,800 diamonds!! Good luck with that!
In other words, it's 75 double chests that you can move in one go.

IMO
observer blocks = redstone fanatics
llmas = wee! this is so fun
shulker box = time to earn some real cash
totem of undying = hardcore pvper *cough cough Qfu
mansion = i cant pvp....so i guess ill go for the AI! (dont get pissed at me for this)
new villagers = idek
treasure maps = explorers but too lazy to actually go exploring (like me)

personally i like ob block cuz redstone

IMO

Observer block: better security for bases (it detects block updates)

Llamas: transport

Shulker box: mass transport

Totem of undying: really?

Mansion: idk

Treasure maps: Really?

Illigers: Minecraft Mafia