In Minecraft Help Center -> Gameplay/How to Guides -> Minecraft Game Guides -> All Enchantments in Minecraft, the new Enchantments Density, Breach and Wind Burst are not Mentioned in the list.
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Outdated Information about All Enchantments in Minecraft
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Breach makes your mace ignore armor doing max damage there are three levels.
Wind burst boosts you in the air after hitting a mob only when falling goes to level 3.
Density increases the damage built up per block when falling max level 5.
Hope this helps