Quicksand

Quicksand seems perfect for small challenges in swamp, mangrove, badlands and desert biomes.

Quicksand can drown players as deep as 3-5 blocks, and can be avoided by wearing leather boots (like snow powder). It looks annoying but the rarity of quicksand in each biome varies, such as mangrove and swamp biomes, with a 40% chance of quicksand. Then there are badland and desert biomes, with a 15% chance of quicksand.

Quicksand can also be crafted using 1 mud block and 1 water bottle (you can also use a water bucket). Quicksand can also be collected using a bucket.

Quicksand can also replace powder snow (if the existence of snow biomes is very rare) and the existence of biomes such as deserts and swamps is easy to find. Quicksand can also be used as a trap from hostile mobs or a prank tool.

Also, the texture of quicksand varies across biomes.Like Swamp Biome: Dark brown in color and resembles a mud block.Mangrove: Light brown in color and resembles a mud block.Desert: Similar to regular sand, but slightly lighter in color and smoother in texture.Badlands: Orange-yellow in color and resembles a smooth quartz block.

Okay, that's all my ideas, please give suggestions in the comments if there is anything missing, Goodbye guys..