echo shard uses for hardcore

dear devs,

please consider any of the following:

echo shard block. noise when stepped on

used in armour trims, trim should have animated texture

disenchanted tool + echo shard in an anvil puts the first enchantment back on instead of any new ones, at one level below what the enchantment was before e.g. sharpnessV -> sharpnessIV does take lots of levels to stop xp duping (I understand if you don't do this one it is a lot)