Energy Weapons in Destiny 2 refer to a type of weapon that utilizes unique ammo and damage types, including Arc, Solar, and Void. These weapons have their own set of strengths and weaknesses, and can be used to great effect against specific enemy types. Shooting enemy shields with a color matching the energy weapon type will cause a large amount of damage and is an important gameplay mechanic in the more challenging PvE events in the game.
Energy Weapons can also have elemental effects, such as shock or burn, which can cause additional damage over time or increase the damage dealt by the weapon. This can make them highly valuable during the more challenging events of the game.