How Did We Get Here?
Have every effect applied at the same time
Requirements: Have every status effect applied to the player that is obtainable in survival mode (with the exception of Saturation).
To get this challenge advancement, you need to be affected by the following status effects at once:
Before attempting this advancement, you must have killed both the ender dragon and the wither, so that you can reach the outer islands of the End, get a wither rose, and craft a beacon. You must have pufferfish, a conduit, spectral arrows, leads, a golden apple and a name tag and you must brew splash potions of Strength, Invisibility, Weakness, Slow Falling, Night Vision, Swiftness, Leaping, Slowness, Fire Resistance and Water Breathing. Completing this advancement requires moving either a dolphin to the outer end islands or a shulker to the overworld, of the two the latter is the easiest as shulkers can be put in boats.
First, find an unexplored ocean monument (such that it still contains elder guardians) as close to spawn as possible. Then build the redstone contraption needed to get the advancement, you'll need two trapdoors, a fence, a stack of blocks, a few rails, redstone, two pistons, four observers, two dispensers, a hopper, a lever, two grindstones, one block of dirt, a wither rose, a bucket (as you'll be in an ocean filling it should be easy), a beacon, enough mineral blocks to bring it to maximum power (2 stacks and 36 blocks), 16 prismarine blocks and a conduit. Notice that all observers and all dispensers are horizontal.
Now it is time to move the shulker to the place shown in the blueprint. You can move the shulker with a boat directly into the end getaway to move it to the main end island, but moving it through the exit portal can be more difficult. If you ever need to push the boat upwards, put a piston below it and power it. To move the shulker through the exit portal you'll need it to exit the boat on the side of the exit portal central pillar, you can force this by placing slabs in all other suitable places, then push the shulker downwards with pistons. The shulker will teleport to spawn (or at the world origin) either in a cave or on the surface. If it is in a cave, remove its supporting block to force his teleportation. When the shulker is on the surface, boat it to the contraption you built, pay attention to avoid going full speed in the boat otherwise the shulker will drown, alternatively throw a splash potion of water breathing at it. When you get near you'll need to put the shulker in a minecart which will drop from the top to put the shulker in place. In order to do so, get close to the line of rails and break the boat. As the shulker teleports push a minecart along the rails, as long as the shulker is right next to the minecart, he will get in and drop into place. When that happens lock the shulker in with a slab. Set the beacon to get Haste and Resistance (you can do that by selecting Haste, then Haste II, then Resistance), put the ten potions in the hopper (they will be placed in the dispenser) and put a spectral arrow in the bottommost dispenser. Now use a lead and tie a dolphin to the fence and put a name tag on it to avoid it despawning.
Now is the moment to start getting the effects: go to a pillager outpost and kill a captain to get Bad Omen, trigger a raid, defeat it and get Hero of the Village, then return to the outpost to get Bad Omen again. From now on you cannot enter any village. Make sure your hunger bar is at most 18/20 and prepare in your hotbar a pufferfish, a blindness suspicious stew (crafted with an azure bluet), a golden apple and a bucket of milk. Now get to your contraption, go over the trapdoor and open it to be in water (this will grant Conduit Power), as soon as the elder guardian curses you with Mining Fatigue eat the pufferfish, close the trapdoor to enter the crawling position, sprint swim towards the grindstones to get on top of the wither rose, as soon as you see the dolphin's grace icon in the top right corner quickly eat the suspicious stew and the golden apple. As both the shulker and the spectral arrow will have already hit you as you eat the golden apple you will be rewarded the advancement. Having all these effects applied at once can be dangerous so drink milk to get rid of them.
This is a hidden advancement, meaning that it can only be viewed when the player has completed the advancement.
Completing this advancement will reward the player 1000 experience, which is the equivalent of 26 levels if the player previously had no experience.