Storm Diver's Additions Mod/Temple Guardian

The Temple Guardian Core is an enemy that spawns in the Jungle Temple at any time. Up to 13 will very quickly spawn as soon as you enter the temple if the Plantera has not been defeated, as a means of discouraging early entrance. Once the Plantera has been defeated they will spawn much less often and only 1 at a time, and they will begin to drop Lihzahrd Power cells and Solar tablet fragments.

It attacks by hovering above the player and firing a damaging laser that passes through tiles, before moving to a random position above the player and firing another laser.

Banner
Temple Guardian Banner

Trivia

 * They are designed to discourage players from entering the Jungle Temple before defeating the Plantera boss, and to make the Temple slightly more challenging once it has been defeated.