Granite Energy Storm

The Granite Energy Storm is a Pre-Hardmode boss that must be fought underground. It can be considered a biome-specific boss for the Granite Cave biome.

While The Granite Energy Storm is alive, the vanilla track Boss 5 will play.

Spawn
The Granite Energy Storm does not spawn on its own and must be summoned by the player by killing an Unstable Energy Anomaly, which spawns rarely in the Granite Caves after defeating Skeletron.

Alternatively, the player may summon this boss with an Unstable Core while they are in the Granite Caves, the Unstable Core won't work if there is a Unstable Energy Anomaly in the area.

Behavior
When the Granite Energy Storm spawns, it will be circled by Coalesced Energy. These serve to block attacks from the player and influence the abilities of the primary core. Piercing weapons such as the Spine Breaker can make short work of them. Coalesced Energy will respawn after a set time.

Attacks
 * The Granite Energy Storm attacks the player by floating around and pausing before charging the nearest player.
 * Once a Coalesced Energy is killed, it will become Encroaching Energy and home in on players, needing to be killed again.
 * After losing 65% life, the Core will begin shooting energy balls at the players.
 * After being lowered to 35% life, the Coalesced Energy will start to spin rapidly, increasing the chance to block attacks.

In Expert Mode


 * If the core refreshes its Coalesced Energy, and some remain, they will be shot at nearby players for massive damage.
 * The energy ball attack will become rapid if no Coalesced Energy exist.
 * When below 40% life, it will start summoning Energy Conduits, which shoot Granite Surge inflicting lasers at the player.