Moonlight stalkers

They spawn at night and when they come in contact with even light such as a torches or the Suns they sink into the ground and despawn if you manage to defeat one of these they give you a moonlight shard if you combine 9 of these in a crafting table you get a moonlight ingot you combine the moonlight ingot in a smithing table with diamond gear you get moonlight gear the moonlight shovel during the night digs at twice the speed, the moonlight ax chops at twice the speed when it comes to night, the pickaxe mine's at twice the speed, the hoe farms faster at night, the sword can hit twice as fast, the helmet giving the one who's wearing it night vision at night, the chest plate defends against damage more efficiently at night, the leggings when you crouch at night turn you invisible and the armor aswell, and the boots make you move faster at night. Each being at the same level as diamond gear but they gain special abilities at night. The moonlight stalkers themselves being able to move fast and deal decent damage they're not supposed to be hard to avoid they're supposed to be hard to defeat for the reward they give is a good one. Thank you for your time, listening to my idea, and making Minecraft better every day.