Place four Sea Pickles in one block.

Lead a caravan containing at least 5 Llamas.

Kill the Wither.

Create and fully power a Beacon.

Respawn the Enderdragon.

Throw diamonds at another player.

Use an Elytra to fly through a 1 by 1 gap while moving faster than 40 m/s.

Dry a Sponge in a Furnace.

Have an Allay drop a cake at a note block

Make a decorated pot out of 4 pottery shards

Take your Strider for a ride on a lava lake in the Overworld for a distance of 50 meters from the point where the ride starts

Trade with a villager at the build height limit

Team up with an axolotl and win a fight