Warped Nylium is the surface block of the warped forest biome and the cyan twin to crimson nylium. The top face glows with a slightly cooler shade of teal-blue compared to its red counterpart, and the same silk-touch rule applies: harvesting without the enchantment yields netherrack rather than the coloured variant. Bone meal spreads warped roots, nether sprouts, twisting vines, and occasional warped fungi over adjacent tiles, gradually transforming a path of plain netherrack back into a small piece of warped forest.

The block also serves as the exclusive substrate for growing huge warped fungi: plant a small warped fungus on top, apply bone meal, and the fungus erupts upward into a structure twenty blocks tall whose canopy yields stems, shroomlight, and decorative warped wart blocks. Because warped forests spawn endermen instead of hoglins, builders often base early Nether outposts here on top of this block — the surrounding biome is statistically the safest large region in the dimension.