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/give ManniIsCool minecraft:emerald{display:{Name:'{"text":"Speed Dash Gem","color":"aqua","italic":false}',Lore:['{"text":"Grants Speed II when held.","color":"gray","italic":false}','{"text":"Right-click to dash 25 blocks!","color":"gray","italic":false}','{"text":"10-second cooldown.","color":"red","italic":false}']}} 1