tellraw @s {"text":"New Weapon Discovered!","color":"gold"}
tellraw @s [{"text":"You have discovered the "},{"text":"weapon_display","color":"gold"},{"text":"!","color":"white"}]
tellraw @s [{"text":"▷ Press "},{"text":"[","color":"green"},{"keybind":"key.advancements","color":"green"},{"text":"] ","color":"green"},{"text":"for more information."}]

playsound minecraft:entity.player.levelup player @s ~ ~ ~ 1 2 1