A new structure and mob for Sift: the vegetation temples and the Nephrite.

I have an idea for a new structure and mob in the "Sift" dimension. The "Vegetation Temples" would be large, rare structures featuring numerous corridors and traps—such as pitfall traps powered by sticky pistons—and lined with plants native to that dimension. They would contain treasure rooms with two chests and a spawner for a mob called the "Nephrite." The Nephrite would be a neutral mob acting as the temple's guardian. It would be a stone-and-plant hybrid creature, slightly taller than an Iron Golem. Its weapons would be two small hammers (or large cymbals); striking them together would create a red shockwave spreading in all directions, dealing 9 damage. There would be a 4-second cooldown between attacks. If a player simply entered the temple, the Nephrites would treat them as an enemy—unless the player offered them "Luminous Berries." In that case, the mobs would not attack unless provoked accidentally; if that happened, trying to offer berries again would no longer work.